When a person works to get money, it is right for him to receive his money. That money is not a gift. It is what that person ought to receive as a result of his work. But nobody can do any work that will make himself right with God. Instead, if he believes in God, then God will accept him. Because of that person’s faith , God says that person is right with himself. That is God’s gift even to those who have not obeyed him.
Romans 4:4-5
做工的得工價，不算恩典，乃是該得的； 惟有不做工的，只信稱罪人為義的上帝，他的信就算為義。
羅馬書 4:4-5