3 For, being ignorant of the righteousness of God, and seeking to establish their own, they did not submit to God's righteousness. 4 For Christ is the end of the law for righteousness to everyone who believes.[1] 5 For Moses writes about the righteousness that is based on the law, that the person who does the commandments shall live by them. 6 But the righteousness based on faith says, "Do not say in your heart, 'Who will ascend into heaven?'" (that is, to bring Christ down) 7 or "'Who will descend into the abyss?'" (that is, to bring Christ up from the dead). 8 But what does it say? "The word is near you, in your mouth and in your heart" (that is, the word of faith that we proclaim); 9 because, if you confess with your mouth that Jesus is Lord and believe in your heart that God raised him from the dead, you will be saved. 10 For with the heart one believes and is justified, and with the mouth one confesses and is saved.
Matthew Henry's Commentary on Romans 10:3-10
Commentary on Romans 10:1-4
(Read Romans 10:1-4)
The Jews built on a false foundation, and refused to come to Christ for free salvation by faith, and numbers in every age do the same in various ways. The strictness of the law showed men their need of salvation by grace, through faith. And the ceremonies shadowed forth Christ as fulfilling the righteousness, and bearing the curse of the law. So that even under the law, all who were justified before God, obtained that blessing by faith, whereby they were made partakers of the perfect righteousness of the promised Redeemer. The law is not destroyed, nor the intention of the Lawgiver disappointed; but full satisfaction being made by the death of Christ for our breach of the law, the end is gained. That is, Christ has fulfilled the whole law, therefore whoever believeth in him, is counted just before God, as much as though he had fulfilled the whole law himself. Sinners never could go on in vain fancies of their own righteousness, if they knew the justice of God as a Governor, or his righteousness as a Saviour.
Commentary on Romans 10:5-11
(Read Romans 10:5-11)
The self-condemned sinner need not perplex himself how this righteousness may be found. When we speak of looking upon Christ, and receiving, and feeding upon him, it is not Christ in heaven, nor Christ in the deep, that we mean; but Christ in the promise, Christ offered in the word. Justification by faith in Christ is a plain doctrine. It is brought before the mind and heart of every one, thus leaving him without excuse for unbelief. If a man confessed faith in Jesus, as the Lord and Saviour of lost sinners, and really believed in his heart that God had raised him from the dead, thus showing that he had accepted the atonement, he should be saved by the righteousness of Christ, imputed to him through faith. But no faith is justifying which is not powerful in sanctifying the heart, and regulating all its affections by the love of Christ. We must devote and give up to God our souls and our bodies: our souls in believing with the heart, and our bodies in confessing with the mouth. The believer shall never have cause to repent his confident trust in the Lord Jesus. Of such faith no sinner shall be ashamed before God; and he ought to glory in it before men.