CCC 1219

The Church has seen in Noah's ark a prefiguring of salvation by Baptism, for by it "a few, that is, eight persons, were saved through water":¹⁴ 1 Pet 3:20.

The waters of the great flood you made a sign of the waters of Baptism, that make an end of sin and a new beginning of goodness.¹⁵ Roman Missal, Easter Vigil 42: Blessing of Water.