While God will one day do away with all evil, He currently allows evil in the world – which provides mankind a choice. Satan is the source of all evil and will suffer an eternity of separation from God for his choices. (Hell was originally prepared for the devil and his demons.) Evil is present in the world because of mankind’s choice in the Garden of Eden. Because of Jesus, we have the opportunity to choose the goodness of God’s grace over evil. While God could eliminate evil immediately, He endures the grief of waiting to do so in order to give more people the opportunity to come to faith in Him. God is able to cause all things, even the evil in this world, to work together for the good of those who love Him.
(Genesis 2:17; Genesis 3:1-24; Romans 3:23; Romans 5:12; Psalm 100:5; John 3:19; Psalm 81:12; Revelation 12:7-9; Revelation 20:10; 1 Corinthians 15:56; Colossians 2:15; 1 John 2:2; 1 Timothy 2:3-4; 2 Peter 3:9; Romans 8:28-29)