Joseph Benson's Commentary of the Old and New Testaments - James 2:25-26
James 2:25-26. Likewise also, &c. After Abraham, the father of the Jews, the apostle cites Rahab, a woman and a sinner of the Gentiles, to show that in every nation and sex true faith produces works, and is perfected by them; that is, by the grace of God working in the believer, while he is showing his faith by his works: see note on Hebrews 11:31. “Rahab’s faith consisted in her attending to, and reasoning justly on, what she had heard concerning the dividing of the waters of the Red... read more
Albert Barnes' Notes on the Whole Bible - James 2:25
Likewise also was not Rahab the harlot justified by works? - In the same sense in which Abraham was, as explained above - showing by her act that her faith was genuine, and that it was not a mere cold and speculative assent to the truths of religion. Her act showed that she truly believed God. If that act had not been performed, the fact would have shown that her faith was not genuine, and she could not have been justified. God saw her faith as it was; he saw that it would produce acts of... read more