TSK · Exodus 34:19

"Sanctify to me all of the firstborn, whatever opens the womb among the children of Israel, both of man and of animal. It is mine."

"You shall not delay to offer from your harvest and from the outflow of your presses. "You shall give the firstborn of your sons to me.

also the firstborn of our sons, and of our livestock, as it is written in the law, and the firstborn of our herds and of our flocks, to bring to the house of our God, to the priests who minister in the house of our God;

(as it is written in the law of the Lord, "Every male who opens the womb shall be called holy to the Lord"),