Genesis 1:19-21

New Revised Standard Version Catholic Edition

¹⁹ And there was evening and there was morning, the fourth day.

²⁰ And God said, “Let the waters bring forth swarms of living creatures, and let birds fly above the earth across the dome of the sky.” ²¹ So God created the great sea monsters and every living creature that moves, of every kind, with which the waters swarm, and every winged bird of every kind. And God saw that it was good.