But turning from all lesser representations, we behold God in Jesus. Looking unto Jesus we see that it is the glory of our God to give. “I do nothing of Myself,” said Christ; “the living Father hath sent Me, and I live by the Father.” “I seek not Mine own glory,” but the glory of Him that sent Me. John 8:28; 6:57; 8:50; 7:18. In these words is set forth the great principle which is the law of life for the universe. All things Christ received from God, but He took to give. So in the heavenly courts, in His ministry for all created beings: through the beloved Son, the Father’s life flows out to all; through the Son it returns, in praise and joyous service, a tide of love, to the great Source of all. And thus through Christ the circuit of beneficence is complete, representing the character of the great Giver, the law of life.  – DA 21.2 

In heaven itself this law was broken. Sin originated in self-seeking. Lucifer, the covering cherub, desired to be first in heaven. He sought to gain control of heavenly beings, to draw them away from their Creator, and to win their homage to himself. Therefore he misrepresented God, attributing to Him the desire for self-exaltation. With his own evil characteristics he sought to invest the loving Creator. Thus he deceived angels. Thus he deceived men. He led them to doubt the word of God, and to distrust His goodness. Because God is a God of justice and terrible majesty, Satan caused them to look upon Him as severe and unforgiving. Thus he drew men to join him in rebellion against God, and the night of woe settled down upon the world.  – DA 21.3 

Jesus Taught His Disciples