When Satan chose to reject God, his character became the opposite of the Creator's. Where God's focus is love and peace, Satan's is hate and violence.God created Lucifer as an angel, but that Lucifer became evil later. The Bible says all creation was good, it later became evil.
By ceasing to be good, satan became evil. God did not create evil, but He does allow evil. If God had not allowed for the possibility of evil, both mankind and angels would be serving God out of obligation, not choice. Evilness came about when God cast him into hell to live for all eternity because he felt as if he were better than God. “I am Jehovah, and there is none else; besides me there is no God. I will gird you, though you have not known me; that they may know from the rising of the sun, and from the west, that there is none besides me: I am Jehovah, and there is none else. I form the light, and create darkness; I make peace, and create evil. I am Jehovah, who does all these things” Isa. 45:5-7
1 Samuel 16:23 And it came to pass, when the evil spirit from God was upon Saul, that David took an harp, and played with his hand: so Saul was refreshed, and was well, and the evil spirit departed from him.
1 Samuel 18:10 And it came to pass on the morrow, that the evil spirit from God came upon Saul, and he prophesied in the midst of the house: and David played with his hand, as at other times: and there was a javelin in Saul's hand.
1 Samuel 19:9 And the evil spirit from the LORD was upon Saul, as he sat in his house with his javelin in his hand: and David played with his hand.
Even the devil himself was created by God as the model of perfection, full of wisdom and perfect in beauty.
Ezekiel 28:11-14'This is what the Sovereign LORD says: “ ‘You were the model of perfection, full of wisdom and perfect in beauty. You were in Eden, the garden of God; every precious stone adorned you: ruby, topaz and emerald, chrysolite, onyx and jasper, sapphire, turquoise and beryl. Your settings and mountings were made of gold; on the day you were created they were prepared. 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. Through your widespread trade you were filled with violence, and you sinned. So I drove you in disgrace from the mount of God, and I expelled you, O guardian cherub, from among the fiery stones. Your heart became proud on account of your beauty, and you corrupted your wisdom because of your splendor. So I threw you to the earth; I made a spectacle of you before kings.’
Proverbs 16:4The LORD hath made all things for himself: yea, even the wicked for the day of evil.
Colossians 1:16 For by him were all things created, that are in heaven, and that are in earth, visible and invisible, whether they be thrones, or dominions, or principalities, or powers: all things were created by him, and for him.
Hell was not even originally created for people. Hell was created for Satan and the angels that followed Satan. Matthew 25:41, "Depart from Me, ye cursed, into everlasting fire, prepared for the devil and his angels." God does not want any person to go to hell. 2 Peter 3:9 tells us, "The Lord is not slack concerning his promise, as some men count slackness; but is longsuffering to us-ward, not willing that any should perish, but that all should come to repentance.
Hell was never intended for man. But if a person rejects Jesus Christ, thereby rejecting heaven, then that person must accompany Satan forever. God gives us a choice, either eternal life with Him or eternal suffering with the devil