Jeremiah 31:11

For the Lord hath redeemed Jacob
Not the patriarch Jacob singly and personally, though he no doubt was a redeemed one; nor his carnal posterity, at least not all of them, only a remnant among them, and especially not them only; but the Gentiles also, even all the elect of God, his church and people, of whatsoever nation, which frequently go by this name in the prophetic writings: and this redemption of them by Christ, which, though future, is spoken of as past, because of the certainty of it; and is the ground and foundation of their being gathered in effectual calling, and of their final perseverance; for redemption has its certain effect, and Christ will never lose the purchase of his blood; see ( Zechariah 10:8 ) ; and ransomed him from the hand of [him that was] stronger than he;
meaning Satan, the strong man armed; who is stronger than man, as appears by his possession of the bodies of men, inflicting diseases on them, and death itself, of which he had the power when permitted; and by his influence over the minds of men; by his temptations to sin, in which he so much succeeds; and even by the prevalence of his temptations over the saints themselves; and by the power which he had over our first parents in innocence, whom he prevailed upon to eat the forbidden fruit, which brought ruin on themselves, and on their posterity; by which means he got them into his hands, and God's elect among the rest, whom he leads captive at his will; and being enfeebled by sin, are so weak as not to be able to rescue themselves out of his hands; for he is stronger than they; but Christ is stronger than the strong man armed; he is the Redeemer that is mighty, and has taken the prey out of his hands, and has led captivity captive: and this he has done, not only by power and conquest, spoiling Satan and his principalities and powers; but by paying a "ransom" price for these captives into the hands of God; and which is no other than his precious blood, his life, himself; and so must be a sufficient ransom for them. This redemption was typified by the deliverance of the Jews out of the hands of the Chaldeans, a mighty nation, and stronger than they; and is the ground, reason, and foundation, of the restoration of that people in the latter day.