God created the devil, and in heaven Satan went to war with Him, correct? Did Satan reject God?
There are two famous verses believed to record the history of Satan;
Ezekiel 28:14-15 (NIV) You were anointed as a guardian cherub, for so I ordained you. You were on the holy mount of God; you walked among the fiery stones. You were blameless in your ways from the day you were created till wickedness was found in you.
When God created the mighty Cherub (Satan), he was perfect. At first, he was not a devil nor was he called Satan. But later, wickedness was found in him, he became proud, violent and sinful. Then God threw him out of heaven.
Did Satan reject God? YES
Isaiah 14:12-15 (NIV) How you have fallen from heaven, morning star, son of the dawn! You have been cast down to the earth, you who once laid low the nations! You said in your heart, “I will ascend to the heavens; I will raise my throne above the stars of God; I will sit enthroned on the mount of assembly, on the utmost heights of Mount Zaphon. I will ascend above the tops of the clouds; I will make myself like the Most High.” But you are brought down to the realm of the dead, to the depths of the pit.
Satan rejected the authority of God, the superiority of God and rejected his creator. Satan wanted to become like God, or superior to God and wanted to be worshiped like God which caused his downfall.