Be baptized, and wash away thy sins — Baptism administered to real penitents, is both a means and seal of pardon. Nor did God ordinarily in the primitive Church bestow this on any, unless through this means.
Related Commentaries of Acts 22:16
Acts 22:16
16 And now why tarriest thou? arise, and be baptized, and wash away thy sins, calling on the name of the Lord.