For with the heart man believes to righteousness; and with the mouth confession is made to salvation.
Look at certain doctrines, and see what they must produce when believed with the heart. It is a portion of Scripture revelation that God is omniscient and omnipotent, that He is ever at hand, to note down human actions, and register them for judgment. Can this really be believed, and yet the believer fail to be intensely earnest to approve himself in God's sight? Rather, will not his faith produce a holy reverence of the Almighty, and make him walk circumspectly, because walking side by side with his Maker and his Judge? The Bible tells him, moreover, of an amazing scheme of rescue planned and executed by God on behalf of himself and his fellow-men. It sets God before Him as giving His own Son, and that Son as giving Himself to ignominy and shame that pardon might be placed within reach of the sinful. Can this be believed, and yet the believer not glow with intense love towards so gracious a God; yea, and towards his fellow-men, seeing that they are objects of the same mercy, and therefore equally precious in the sight of the Creator? But yet further. Along with the revelation of this scheme of mercy the Bible sets forth conditions apart from which we can have no share in the blessings of Christ's death, imposing duties on the performance of which our future portion is made to depend, and annexing threatenings and promises just as though we were to be judged by our works irrespective of the blood of the Redeemer. It tells us of heaven; it tells us of hell; and, dealing with us as with accountable creatures, it conjures us by the joys of the one state and the terrors of the other to "live soberly, righteously, and godly in the world." Now tell me who believes this? The man who lives as though there were no heaven, or no hell, doing the very things, obeying the very passions, neglecting the very duties, which are forbidden or commanded, to all who would escape wrath and find mercy hereafter? Impossible. These things cannot be believed by the sensual man, the covetous, the proud, or the ambitious. Faith in these things must lead to effort, to obedience, to self-denial.
(H. Melvill, B.D.)
Parallel VersesKJV: For with the heart man believeth unto righteousness; and with the mouth confession is made unto salvation.