4 Bible Verses about Justification Excluding Boasting

Then where is the boasting? It is excluded. Through what law? Of works? No, but through the law of faith. Therefore we conclude that a man is justified by faith without the works of the Law.

For if Abraham was justified by works, he has a boast; but not before God.

and God has chosen the base things of the world, and things which are despised, and things which are not, in order to bring to nothing things that are;

For by grace you are saved through faith, and that not of yourselves, it is the gift of God,