(Romans 10:9, 10) For if you publicly declare with your mouth that Jesus is Lord, and exercise faith in your heart that God raised him up from the dead, you will be saved. 10 For with the heart one exercises faith for righteousness, but with the mouth one makes public declaration for salvation.
Genuine faith requires basic or fundamental knowledge, acquaintance with evidence, as well as heartfelt appreciation of what that evidence indicates. Thus, although it is impossible to have real faith without accurate knowledge, the Bible says that it is “with the heart” that one exercises faith.—Rom. 10:10.
Are works really necessary if a person has faith?
Jas. 2:17, 18, 21, 22, 26: “Faith, if it does not have works, is dead in itself. Nevertheless, a certain one will say: ‘You have faith, and I have works. Show me your faith apart from the works, and I shall show you my faith by my works.’ Was not Abraham our father declared righteous by works after he had offered up Isaac his son upon the altar? You behold that his faith worked along with his works and by his works his faith was perfected. Indeed, as the body without spirit is dead, so also faith without works is dead.”
Illustration: A young man may court a young lady, telling her that he loves her. But if he never asks her to marry him, is he really demonstrating that his love is thorough? Likewise, works are a means of demonstrating the genuineness of our faith and our love. If we do not obey God we do not really love him or have faith in the rightness of his ways. (1 John 5:3, 4) But we cannot earn salvation no matter what works we do. Eternal life is a gift from God through Jesus Christ, not payment for our works.—Eph. 2:8, 9.