What are we to do with the firstborn of our herd or flock?
Answer From The Annual Reading Schedule - Week 45 Notes For Deuteronomy: They are set-apart to Yahweh. We are to not do any work with them nor shear them (Deuteronomy 15:19). We and our household are to eat them before Yahweh year by year in the place which Yahweh chooses (Deuteronomy 15:20). However, if there is a defect we are not to slaughter it to Yahweh but eat it within our gates (Deuteronomy 15:21-23).