Verse 2. Let the redeemed of the LORD say so. Whatever others may think or say, the redeemed have overwhelming reasons for declaring the goodness of the Lord. Theirs is a peculiar redemption, and for it they ought to render peculiar praise. The Redeemer is so glorious, the ransom price so immense, and the redemption so complete, that they are under sevenfold obligations to give thanks unto the Lord, and to exhort others to do so. Let them not only feel so but say so; let them both sing and bid their fellows sing.
Whom he hath redeemed from the hand of the enemy. Snatched by superior power away from fierce oppressions, they are bound above all men to adore the Lord, their Liberator. Theirs is a divine redemption, "he hath redeemed" them, and no one else has done it. His own unaided arm has wrought out their deliverance. Should not emancipated slaves be grateful to the hand which set them free? What gratitude can suffice for a deliverance from the power of sin, death, and hell? In heaven itself there is no sweeter hymn than that whose burden is, "Thou hast redeemed us unto God by thy blood."
EXPLANATORY NOTES AND QUAINT SAYINGS
Verse 2. Redeemed. Moses has given us in the law a clear and full idea of what we are to understand by the word gal, here rendered "redeemed." If any person was either sold for a slave or carried away for a captive, then his kinsman, who was nearest to him in blood, had the right and equity of redemption. But no other person was suffered to redeem. And such a kinsman was called "the redeemer", when he paid down the price for which his relation was sold to be a slave, or paid the ransom for which he was led captive. And there is another remarkable instance in the law, wherein it was provided, that in any case any person was found murdered, then the nearest to him in blood was to prosecute the murderer, and to bring him to justice, and this nearest relation thus avenging the murder is called by the same name, a redeemer. And how beautifully is the office of our great Redeemer represented under these three instances; he was to us such a Redeemer in spirituals, as these were in temrporals: for sin had brought all mankind into slavery and captivity, and had murdered us ... This most high God, who was also man, united in one Christ, came into the world to redeem us, and the same person being both God and man, must merit for us as God in what he did for us as man. Accordingly, by the merits of his obedience and sufferings, he paid the price our redemption, and we were no longer the servants of sin; and by his most precious blood shed upon the cross, by his death and resurrection, he overcame both death, and him who had the power of death, and by delivering us in this manner from slavery and captivity, he fulfilled the third part of the Redeemer's office: for Satan was the murderer from the beginning, who had given both body and soul a mortal wound of sin, which was certain death and eternal misery, and the Redeemer came to avenge the murder. He took our cause in hand, as being our nearest kinsman, and it cost him his own life to avenge ours. -- William Romaine.
Verse 2. From the hand of the enemy. From all their sins which war against their souls; from Satan their implacable adversary, who is stronger than they; from the law, which threatens and curses them with damnation and death; from death itself, the last enemy, and indeed from the hand of all their enemies, be they who they may. --John Gill.