Romans 4:2

For if Abraham was justified by works, he has something to boast about, but not before God.

Surrounding context

4:1 What then shall we say that Abraham our father has found according to the flesh?

4:2 For if Abraham was justified by works, he has something to boast about, but not before God.

4:3 For what does the Scripture say? "Abraham believed God, and it was accounted to him for righteousness."

Translation and sources