Verse 21. The antitype whereof - The thing typified by the ark, even baptism, now saveth us - That is, through the water of baptism we are saved from the sin which overwhelms the world as a flood: not, indeed, the bare outward sign, but the inward grace; a divine consciousness that both our persons and our actions are accepted through him who died and rose again for us.
Verse 22. Angels and authorities and powers - That is, all orders both of angels and men.