Whats the Meaning of 1 Peter 3:18-20?

(1 Peter 3:18-20) For Christ also died for sins once for all, the just for the unjust, so that He might bring us to God, having been put to death in the flesh, but made alive in the spirit; 19 in which also He went and made proclamation to the spirits now in prison, 20 who once were disobedient, when the patience of God kept waiting in the days of Noah, during the construction of the ark, in which a few, that is, eight persons, were brought safely through the water.


Answer: Christ died once for the redemption of His elect so that sinners who are enemies