To give knowledge of salvation unto his people by the remission of their sins,
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Bede
AD 735
For as if desiring to explain the name of Jesus, i.e. the Savior, he frequently makes mention of salvation, but lest men should think it was a temporal salvation which was promised, he adds, for the forgiveness of sins.
Butthe Jews prefer not to receive Christ, but to wait for Antichrist; for they desire to be delivered not from the dominion of sin within, but from the yoke of man's bondage without.
Jesus is our salvation, and St. John was sent to give to the people the knowledge of this salvation: he bore testimony of Christ; (Theophylactus) by whom alone remission of sins can be obtained.