Exodus 22:29-30

29“You shall not delay to offer from the fullness of your harvest and from the outflow of your presses. aThe firstborn of your sons you shall give to me. 30 bYou shall do the same with your oxen and with your sheep: cseven days it shall be with its mother; on the eighth day you shall give it to me.

Leviticus 2:12

12 dAs an offering of firstfruits you may bring them to the Lord, but they shall not be offered on the altar for a pleasing aroma.

Leviticus 23:17

17You shall bring from your dwelling places two loaves of bread to be waved, made of two tenths of an ephah. They shall be of fine flour, and they shall be baked with leaven, as efirstfruits to the Lord.
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