Shemot 13:10-12

Orthodox Jewish Bible

¹⁰ Thou shalt therefore be shomer over this chukkah in its mo’ed (season, fixed time) perpetually.

¹¹ And it shall be when Hashem shall bring thee into the land of the Kena’ani, as He swore unto thee and to thy avot, and shall give it thee,

¹² That thou shalt set apart unto Hashem all that openeth the rechem (womb), and every firstling that is born of a behemah which thou hast; hazecharim (the males) shall be Hashem’s.