The title of this psalm in the Arabic version is "hallelujah", as in some preceding ones; it is part of the great "Hallel" sung at the passover, and with great propriety; since the subject matter of it is the departure of the children of Israel out of Egypt, typical of our spiritual redemption by Christ; and of the effectual calling of God's elect out of a state of nature into a state of grace; and particularly of the conversion of the Gentiles, and the bringing of them from Paganism to Christianity: the inscription of the Syriac version is,"a psalm without a name, out of the ancient writing; concerning Moses, who sung praise at the sea; but unto us the calling of the Gospel, by which we become a new people; spiritual to God, who is incarnate; to Jesus Christ, who redeemed us by his blood from the curse of the Scripture (the law), and hath cleansed us from sin by his Spirit.'
'Ver. 1. When Israel went out of Egypt,.... The people of Israel in a body, publicly, openly, and not by stealth; freely and willingly, not forced and drove out; though urged by the Egyptians to go, through the hand of God upon them; and so went out with the mighty hand and outstretched arm of the Lord, and with great riches, and in health, not one feeble or sick among them.
The house of Jacob from a people of strange language; or barbarous; as every language was reckoned by the Jews but their own; the Egyptian language they did not understand; see Ps 81:5, no doubt many of them learned it during their long stay there, but in general they retained their own language.