This is a symbol of baptism, which now saves you-- not the putting away of the filth of the flesh, but the answer of a good conscience toward God, through the resurrection of Jesus Christ,
We now see what this connection means; for some one might object and say, “Our baptism is widely different from that of Noah, for it happens that most are at this day baptized.” To this he replies, that the external symbol is not sufficient, except baptism be received really and effectually: and the reality of it will be found only in a few. It hence follows that we ought carefully to see how men commonly act when we rely on examples, and that we ought not to fear though we may be few in number. 