||God blessed them. God said to them, 'Be fertile and become many. Fill the land and conquer it. Dominate the fish of the sea, the birds of the sky, and every beast that walks the land.
Vayevarech otam Elohim vayomer lahem Elohim peru urevu umil'u et-ha'arets vechiveshuha uredu bidegat hayam uve'of hashamayim uvechol-chayah haromeset al-ha'arets.
Some say that this is a commandment (cf. Chinukh), while others maintain that it is a blessing (see Tosafoth, Yevamoth 65b, s.v. VeLo; Maharsha, Sanhedrin 59b, s.v. VeHarey).