For Christ suffered once for people's sins [to be forgiven]. [It was the case of] a righteous Man suffering for unrighteous people, so that He could bring you [or, "us"] to God [for salvation]. [Though] He [i.e., Jesus] was put to death physically, He was brought back to life by the Holy Spirit [Note: Some translations say "in spirit"].

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.