Deuteronomy 15:19

Giving God the Best

15:19 You must set apart for the Lord your God every firstborn male born to your herds and flocks. You must not work the firstborn of your bulls or shear the firstborn of your flocks.

Deuteronomy 28:11

28:11 The Lord will greatly multiply your children, the offspring of your livestock, and the produce of your soil in the land which he promised your ancestors he would give you.