Adam Clarke's Commentary on the Bible - Isaiah 63:8-9
So he was their Savior. In all their affliction "And he became their Savior in all their distress" - I have followed the translation of the Septuagint in the latter part of the eighth, and the former part of the ninth verse; which agrees with the present text, a little differently divided as to thee members of the sentence. They read מכל miccol , out of all, instead of בכל bechol , in all, which makes no difference in the sense; and צר tsar they understand as ציר tsir . Και... read more
John Gills Exposition of the Bible Commentary - Isaiah 63:17
O Lord, why hast thou made us to err from thy ways, and hardened our heart from thy fear ?.... These are the words, not of wicked men among the Jews, charging all their errors, hardness of heart, and wickedness they were guilty of, upon the Lord, as if he was the author and occasion of them, and led them into them; but of the truly godly, lamenting and confessing their wandering from the ways, commands, and ordinances of God, the hardness of their hearts; their want of devotion and affection... read more