Isaiah 59:21 - Exposition

As for me ; literally, and I. The prophet begins with one construction, and then checks himself, and introduces another. This is my covenant (comp. Jeremiah 31:31-34 ; and see the comment on Isaiah 53:3 ). The new covenant involved the giving of God's Spirit to his people ( Joel 2:28 ); and this Spirit, it is here promised, shall not depart from God's people while time endures. The Spirit will be accompanied with certain "words" which will be put into the Church's mouth; and these words will remain unchanged and pass on from mouth to mouth, age after age, for ever. The "words" intended are probably those of the entire Bible—"all God's revelations'' (Cheyne)—which the Church will maintain as inspired truth through all ages. Upon thee; i.e. upon Israel. The change of number and person ("with them … upon thee") is not unusual in Isaiah ( Isaiah 1:29 ; Isaiah 33:2 ; Isaiah 49:5 ; Isaiah 62:11 , Isaiah 62:12 , etc.).