John 3:16 For God so loved the world, that he gave his one and only Son, that whoever believes in him should not perish, but have eternal life.

Ephesians 2:8-9 for by grace you have been saved through faith, and that not of yourselves; it is the gift of God, not of works, that no one would boast.

John 6:28-29 They said therefore to him, “What must we do, that we may work the works of God?”
Jesus answered them, “This is the work of God, that you believe in him whom he has sent.”

Romans 4:5 But to him who doesn’t work, but believes in him who justifies the ungodly, his faith is accounted for righteousness.