1 Peter 3:18-20

For Christ [the Messiah Himself] died for sins once for all, the Righteous for the unrighteous (the Just for the unjust, the Innocent for the guilty), that He might bring us to God. In His human body He was put to death, but He was made alive in the spirit, In which He went and preached to the spirits in prison, [The souls of those] who long before in the days of Noah had been disobedient, when God's patience waited during the building of the ark in which a few [people], actually eight in number, were saved through water. [Gen. 6-8.]