John Gills Exposition of the Bible Commentary - Lamentations 3:31
For the Lord will not cast off for ever. Which is not to be understood of all his creatures; for there are some he does cast off for ever, as the angels that sinned; reprobate men, profligate and abandoned sinners, that live and die impenitent; and unbelievers, carnal professors, and apostates; but not his own special and peculiar people, the people whom he has foreknown and loved with an everlasting love, his spiritual Israel; or, as the Targum supplies it, "his servants"; see Psalm 94:14 ... read more
Matthew Henry's Complete Commentary - Lamentations 3:21-36
Here the clouds begin to disperse and the sky to clear up; the complaint was very melancholy in the former part of the chapter, and yet here the tune is altered and the mourners in Zion begin to look a little pleasant. But for hope, the heart would break. To save the heart from being quite broken, here is something called to mind, which gives ground for hope (Lam. 3:21), which refers to what comes after, not to what goes before. I make to return to my heart (so the margin words it); what we... read more