James 2:19-23

Thou believest that there is one God; thou doest well: the devils also believe, and tremble.

But wilt thou know, O vain man, that faith without works is dead?

Was not Abraham our father justified by works, when he had offered Isaac his son upon the altar?

Seest thou how faith wrought with his works, and by works was faith made perfect?

And the scripture was fulfilled which saith, Abraham believed God, and it was imputed unto him for righteousness: and he was called the Friend of God.