The following information is from The Urantia Book, Paper 1, "The Universal Father."

     "You, God, are alone; there is none beside you. You have created the heaven and the heaven of heavens, with all their hosts; you preserve and control them. The Creator covers himself with light as with a garment and stretches out the heavens as a curtain." [UB 1:0:1] [Psalms 104:2]
     The earth is inhabited with beings who can know God, receive the divine affection, and love him in return. "God created the heavens and formed the earth; he established the universe and created this world not in vain; he formed it to be inhabited."
     You, God, are the eternal maker and infinite upholder of all creation. [UB 1:0:2,3] [Isaiah 45:18]

     From the Universal Father who inhabits eternity there has gone forth the supreme mandate: "Be you perfect, even as I am perfect." In love and mercy the messengers of God have carried this divine exhortation down through the ages, even to such lowly creatures as the human races of Earth. [UB 1:0:3] [Matthew 5:48]

     This magnificent and universal injunction to strive for the attainment of the perfection of divinity is the first duty, and should be the highest ambition, of all the struggling creature creation of the God of perfection. This possibility of the attainment of divine perfection is the final and certain destiny of all man’s eternal spiritual progress. [UB 1:0:4]
     Urantia [earth] mortals can hardly hope to be perfect in the infinite sense, but it is entirely possible for human beings, starting out as they do on this planet, to attain the supernal and divine goal which the infinite God has set for mortal man; and when they do achieve this destiny, they will, in all that pertains to self-realization and mind attainment, be just as replete in their sphere of divine perfection as God himself is in his sphere of infinity and eternity. Such perfection may not be universal in the material sense, unlimited in intellectual grasp, or final in spiritual experience, but it is final and complete in all finite aspects of divinity of will, perfection of personality motivation, and God-consciousness. [UB 1:0:5]

     This is the true meaning of that divine command, “Be you perfect, even as I am perfect,” which ever urges mortal man onward and beckons him inward in that long and fascinating struggle for the attainment of higher and higher levels of spiritual values and true universe meanings. This sublime search for the God of universes is the supreme adventure of the inhabitants of all the worlds of time and space. [UB 1:0:6]

Man's choicest gift to God.
     The Universal Father never imposes any form of arbitrary recognition, formal worship, or slavish service upon the intelligent will creatures of the universes. The evolutionary inhabitants of the worlds of time and space must of themselves—in their own hearts—recognize, love, and voluntarily worship him. The Creator refuses to coerce or compel the submission of the spiritual free wills of his material creatures. The affectionate dedication of the human will to the doing of the Father’s will is man’s choicest gift to God; in fact, such a consecration of creature will constitutes man’s only possible gift of true value to the Paradise Father. In God, man lives, moves, and has his being; there is nothing which man can give to God except this choosing to abide by the Father’s will, and such decisions, effected by the intelligent will creatures of the universes, constitute the reality of that true worship which is so satisfying to the love-dominated nature of the Creator Father. [UB 1:2]
Comment. Therefore, blood sacrifices, or any other kind of material sacrifices, are totally unnecessary. But fear-driven primitive man, believing that his gods were just like himself, only more powerful, could think of nothing better with which to attempt to appease his numerous wrathful, jealous gods.

     Said Isaiah to the spiritually depraved cities of Sodom and Gomorrah: "Hear the word of the Lord, ye rulers of Sodom; give ear unto the law of our God, ye people of Gomorrah. To what purpose is the multitude of your sacrifices unto me? saith the Lord: I am full of the burnt offerings of rams, and the fat of fed beasts; and I delight not in the blood of bullocks, or of lambs, or of he goats." [Isaiah 1:10-16]
Isaiah then enumerated a list of additional practices also not pleasing to the Lord.

The Reality of God.
God is neither man-like nor machine-like. He is universal spirit, eternal truth, infinite reality, and father personality. He is absolute, eternal, and infinite, but he is also good, divine, and gracious. God is spirit; God is love. [1John 4:16] He is a saving person and a loving Father to all who enjoy spiritual peace on earth, and who crave to experience personality survival in death [resurrection in heaven]. [UB 1:2:1,2]
     The existence of God can never be proved by scientific experiment or by the pure reason of logical deduction. God can be realized only in the realms of human experience; nevertheless, the true concept of the reality of God is reasonable to logic, plausible to philosophy, essential to religion, and indispensable to any hope of personality survival [resurrection in heaven]. [UB 1:2:4]
     Those who know God have experienced the fact of his presence; such God-knowing mortals hold in their personal experience the only positive proof of the existence of the living God which one human being can offer to another. The existence of God is utterly beyond all possibility of demonstration except for the contact between the God-consciousness of the human mind and the God-presence of the Indwelling Spirit that indwells the mortal intellect and is bestowed upon man as the free gift of God the Father. [UB 1:2:5]

God is a Universal Spirit.
"God is spirit." [1John 4:24] "God is love." [1John: 4:8,16] He is a universal spiritual presence. The Universal Father is "the sovereign, eternal, immortal, invisible, and only true God." [John 17:3] [Deuteronomy 6:4] God the Father is an infinite spiritual reality; he is the sovereign, eternal, immortal, invisible, and only true God. [UB 1:3:1]
     Comment: John 16:13 states: "Howbeit when he, the Spirit of Truth, is come, he will guide you into all truth . . ." Based on this statement by John, it appears that we can logically conclude that the Bible is not necessarily the final revelation of God. If a mortal is willing to be led by the Indwelling Spirit and the Spirit of Truth on a daily basis, and if his spiritual capacity permits, then God always stands ready to provide him with an increased revelation of truth.
     Said the prophet of old: "Lo, he goes by me, and I see him not; he passes on also, but I perceive him not." [Job 9:11] [UB 1:3:2]

     God is not invisible because he is hiding himself away from lowly man. Rather, says God: "You cannot see my face, for no mortal can see me and live." No material man could behold the spirit God and preserve his mortal existence. The spiritual luminosity of the Father's personal presence is a "light which no mortal man can approach; which no material creature has seen or can see." [1Timothy 6:16] But it is not necessary to see God with the eyes of the flesh in order to discern him by the faith-vision of the spiritualized mind. [UB 1:3:3]
     The Paradise spirit, the Indwelling Spirit, that indwells the minds of the mortals of time and there fosters the creation of the immortal soul of the surviving creature is of the nature and divinity of God the Father. These Indwelling Spirits are the will of God abroad in the universe. Sent by God, they are a part of the infinity of God, the Father of Fathers. [UB 1:3:6]
Comment. The "Indwelling Spirits" are called Thought Adjusters in The Urantia Book.

The Mystery of God.
The infinity of God is such that it eternally constitutes him mystery. Nevertheless, mortal men have something from God himself which actually dwells within them: the Indwelling Spirit [Thought Adjuster]. This Indwelling Spirit is a fragment of God, a part and parcel of divinity. [UB 1:4:1] [Romans 8:14] [1Corinthians 2:12]
     The physical bodies of mortals are “the temples of God.” Notwithstanding that the Sovereign Creator Sons [such as Jesus] come near the creatures of their inhabited worlds and “draw all men to themselves;" though they “stand at the door” of consciousness “and knock” and delight to come in to all who will “open the doors of their hearts;" although there does exist this intimate personal communion between the Creator Sons and their mortal creatures, nevertheless, mortal men have something from God himself [the Indwelling Spirit] which actually dwells within them; their bodies are the temples thereof. [UB 1:4:2] [1Corinthians 3:16] [Revelation 3:20] [John 12:32]

     When you are through down here, when your course has been run in temporary form on earth, when your trial trip in the flesh is finished, when the dust that composes the mortal tabernacle “returns to the earth whence it came”; then, it is revealed, the indwelling “Spirit shall return to God who gave it.” There sojourns within each moral being of this planet a fragment of God, a part and parcel of divinity. It is not yet yours by right of possession, but it is designedly intended to be one with you if you survive the mortal existence. [UB 1:4:3] [Psalms 104:29] [Ecclesiastes 12:7]

     The God of universal love unfailingly manifests himself to every one of his creatures up to the fullness of that creature's capacity to spiritually grasp the qualities of divine truth, beauty, and goodness. [UB 1:4:5]
     To every spirit being and to every mortal creature in every sphere and on every world of the universe of universes, the Universal Father reveals all of his gracious and divine self that can be discerned or comprehended by such spirit beings and by such mortal creatures. God is no respecter of persons, either spiritual or material. The divine presence which any child of the universe enjoys at any given moment is limited only by the capacity of such a creature to receive and to discern the spirit actualities of the supermaterial world. [UB 1:4:6]

Personality of the Universal Father.
Do not permit the magnitude of God, his infinity, either to obscure or eclipse his personality. "He who planned the ear, shall he not hear? He who formed the eye, shall he not see" [Psalms 94:9] [UB 1:5:1]
     God is not hiding from any of his creatures. He is unapproachable to so many orders of beings only because he "dwells in a light which no material creature can approach." The immensity and grandeur of the divine personality is beyond the grasp of the unperfected mind of evolutionary mortals. He "measures the waters in the hollow of his hand, measures a universe with the span of his hand. It is he who sits on the circle of the earth, who stretches out the heavens as a curtain and spreads them out as a universe to dwell in." [Isaiah 40:22] "Lift up your eyes on high and behold who has created all these things, who brings out their worlds by number and calls them all by their names"; and so it is true that "the invisible things of God are partially understood by the things which are made." [Isaiah 40:12,26] [UB 1:5:3]
     Even though material mortals cannot see the person of God, they should rejoice in the assurance that he is a person; by faith accept the truth which portrays that God so loved the world as to provide for the eternal spiritual progression of earth's lowly inhabitants; he "delights in his children." God is lacking in none of those superhuman and divine attributes which constitute a perfect, eternal, loving, and infinite personality. [UB 1:5:4]

     Notwithstanding that God is an eternal power, a majestic presence, a transcendent ideal, and a glorious spirit, though he is all these and infinitely more, nonetheless, he is truly and everlastingly a perfect Creator personality, a person who can "know and be known," who can "love and be loved," and one who can befriend us; while you can be known, as other humans have been known, as the friend of God. He is a real spirit and a spiritual reality. [UB 1:5:8]
     It is literally true: "In all your triumphs he triumphs in and with you." "In all your afflictions he is afflicted." [UB 1:5:16] [Exodus 3:7] [Isaiah 63:9]

Personality in the Universe.
God is spirit--spirit personality; man is also a spirit--potential spirit personality. Jesus of Nazareth attained the full realization of this potential of spirit personality in human experience; therefore his life of achieving the Father’s will becomes man’s most real and ideal revelation of the personality of God. Even though the personality of God can be grasped only in actual religious experience, in Jesus’ earth life we are inspired by the perfect demonstration of such a realization and revelation of the personality of God in a truly human experience. [UB 1:6:8]