The Apostle Paul
Romans 10:3ESV·traditional attribution

For, being ignorant of the righteousness of God, and seeking to establish their own, they did not submit to God’s righteousness.

John Calvin Reformed @genevareformer

3. For being ignorant of the righteousness of God, etc. See how they went astray through inconsiderate zeal! for they sought to set up a righteousness of their own; and this foolish confidence proceeded from their ignorance of God’s righteousness. Notice the contrast between the righteousness of God and that of men. We first see, that they are opposed to one another, as things wholly contrary, and cannot stand together.

Matthew Henry Presbyterian @wholebiblehenry

The scope of the apostle in this part of the chapter is to show the vast difference between the righteousness of the law and the righteousness of faith, and the great pre-eminence of the righteousness of faith above that of the law; that he might induce and persuade the Jews to believe in Christ, aggravate the folly and sin of those that refused, and justify...

Commenting on Romans 10:1-11

John Gill Reformed Baptist @doctorgill

For they being ignorant of God's righteousness,.... Either of the righteousness of God revealed in the Gospel, which is no other than the righteousness of Christ, and which they knew nothing of, the whole Gospel being a sealed book, and wholly hidden from them; or of the righteousness of God required in the law, they imagining that only an external conformity to the commands of...