Catechism of the Catholic Church §1222 — excerpt
Finally, Baptism is prefigured in the crossing of the Jordan River by which the People of God received the gift of the land promised to Abraham's descendants, an image of eternal life.
This translation is under copyright, so only the cited words are quoted here. Follow the link for the full text. Translation: English translation of the Catechism of the Catholic Church, 2nd ed. (Libreria Editrice Vaticana), as posted at vatican.va.