As obedient children, do not pattern your lives after the evil desires you formerly had when you were ignorant,

At one time you [Gentiles] were not a [chosen] people, but now you are God's [special] people. Once you had not received [His] mercy, but now you have received it.

These people had disobeyed [Noah's preaching, See II Pet. 2:5] back when God's patience waited [for them to repent, See Gen. 6:3], during the days of Noah, when the ship was being constructed. It was by that means [i.e., the ship floating them to safety through the Flood waters] that a few persons, eight of them, were saved [from destruction] through water.

Therefore, since Christ has suffered physically, you people should fortify yourselves with the same attitude He had. For the person who has suffered physically [i.e., in standing for Christ] has quit sinning.

This is the purpose that the Gospel was preached to those who have died physically [for the faith]: It was so that, even though they had been judged physically [i.e., by suffering death at the hands of men], they could still live spiritually in the presence of God.