“Abraham believed God, and God counted him as righteous because of his faith.” (Romans 4:3 NLT).

FAITH COUNTED AS RIGHTEOUSNESS
Paul explained that Abraham, the human founder of Judaism, was not considered righteous by his circumcision, but by his faith. Paul quoted Moses, who wrote of Abraham, “And he believed the Lord, and he counted it to him as righteousness” (Gen. 15:6). So, faith has always been the only way to please God. And what is the object of that faith? The object of our faith is the Lamb of God. Abraham believed that God would provide the Lamb. And God did, replacing Abraham’s son, Isaac, as a sacrifice.
 
Now, the Lamb of God that takes away the sins of the world has already come. He is Jesus, the object of our faith, the One in whom we believe, so that God counts us as righteous because of our faith in Jesus.