Genesis 15:6

15:6 Abram believed the Lord, and the Lord considered his response of faith as proof of genuine loyalty.

Galatians 3:6-8

3:6 Just as Abraham believed God, and it was credited to him as righteousness, 3:7 so then, understand that those who believe are the sons of Abraham. 3:8 And the scripture, foreseeing that God would justify the Gentiles by faith, proclaimed the gospel to Abraham ahead of time, saying, “All the nations will be blessed in you.”

James 2:23

2:23 And the scripture was fulfilled that says, “Now Abraham believed God and it was counted to him for righteousness,” and he was called God’s friend.