Read 1 Peter 3:18-22
18For Christ diedc for sins once and for all, a good man on behalf of sinners, in order to lead you to God. He was put to death physically, but made alive spiritually, 19and in his spiritual existence he went and preached to the imprisoned spirits. 20These were the spirits of those who had not obeyed God when he waited patiently during the days that Noah was building his boat. The few people in the boat—eight in all—were saved by the water, 21which was a symbol pointing to baptism, which now saves you. It is not the washing away of bodily dirt, but the promise made to God from a good conscience. It saves you through the resurrection of Jesus Christ, 22who has gone to heaven and is at the right-hand side of God, ruling over all angels and heavenly authorities and powers.
This passage is quite mysterious - and hard to interpret. It seems to point to Jesus extending the offer of his ministry of reconciliation to all those who came before him too.
As I remember how you reached out to everyone - even in this case to those who died before you came; help me to reach out to all people - with your love and grace.