Even though we chose to reject God, He chose us. What amazing love!

How do we go from being an enemy of God, hating God, and murdering Christ to loving God? What so drastically changes our hearts? . . . Grace alone.

1And you were dead in your trespasses and sins, 2in which you formerly walked according to the course of this world, according to the prince of the power of the air, of the spirit that is now working in the sons of disobedience . . . . 4But God, being rich in mercy, because of His great love with which He loved us, 5even when we were dead in our transgressions, made us alive together with Christ (by grace you have been saved), 6and raised us up with Him, and seated us with Him in the heavenly places in Christ Jesus, 7so that in the ages to come He might show the surpassing riches of His grace in kindness toward us in Christ Jesus. 8For by grace you have been saved through faith; and that not of yourselves, it is the gift of God; 9not as a result of works, so that no one may boast. 10For we are His workmanship, created in Christ Jesus for good works, which God prepared beforehand so that we would walk in them. – Ephesians 2:1-10

And because of him you are in Christ Jesus, who became to us wisdom from God, righteousness and sanctification and redemption, so that, as it is written, “Let the one who boasts, boast in the Lord.”
--1Corithians 1:30,31