Psalms 77:15 - Exposition

Thou hast with thine arm ( i.e. with thy mighty strength) redeemed thy people. The deliverance from Egypt is constantly called a "redemption" ( Exodus 6:6 ; Exodus 15:13 ; Deuteronomy 7:8 ; Deuteronomy 9:26 , etc.; 2 Samuel 7:23 ; 1 Chronicles 17:21 , etc.). It is brought forward here "as the greatest and most wonderful of all the works of God, and hence as containing the strongest pledge of future deliverance" (Hengstenberg). The sons of Jacob and Joseph. A new designation of the people of Israel, and one which elsewhere occurs only in Obadiah 1:18 . Professor Cheyne suggests that it is a geographical division—by Jacob southern Israel, and by Joseph northern Israel, being intended (comp. Hosea 12:2 ; Amos 5:6 , Amos 5:15 ; Amos 6:6 ).