Matthew 1:21 ESV
She will bear a son, and you shall call his name Jesus, for he will save his people from their sins.”
The name that should be given: Thou shalt call his name Jesus, a Savior
Jesus is the same name with Joshua, the termination only being changed, for the sake of conforming it to the Greek. Joshua is called Jesus (Acts 7:45; Heb. 4:8), from the Seventy. There were two of that name under the Old Testament, who were both illustrious types of Christ, Joshua who was Israel’s captain at their first settlement in Canaan, and Joshua who was their high priest at their second settlement after the captivity, Zech. 6:11-12. Christ is our Joshua; both the Captain of our salvation, and the High Priest of our profession, and, in both, our Savior a Joshua who comes in the stead of Moses, and does that for us which the law could not do, in that it was weak.
Joshua had been called Hosea, but Moses prefixed the first syllable of the name Jehovah, and so made it Jehoshua (Num. 13:16), to intimate that the Messiah, who was to bear that name, should be Jehovah; he is therefore able to save to the uttermost, neither is there salvation in any other.
The reason of that name: For he shall save his people from their sins
Not the nation of the Jews only (he came to his own, and they received him not), but all who were given him by the Father’s choice, and all who had given themselves to him by their own. He is a king who protects his subjects, and, as the judges of Israel of old, works salvation for them. Note, those whom Christ saves he saves from their sins; from the guilt of sin by the merit of his death, from the dominion of sin by the Spirit of his grace. In saving them from sin, he saves them from wrath and the curse, and all misery here and hereafter.
Christ came to save his people, not in their sins, but from their sins; to purchase for them, not a liberty to sin, but a liberty from sins, to redeem them from all iniquity (Titus 2:14); and so to redeem them from among men (Rev. 14:4) to himself, who is separate from sinners. So that those who leave their sins, and give up themselves to Christ as his people, are interested in the Saviour, and the great salvation which he has wrought out, Rom. 11:26.