Numbers 18:17

But no such payment may be made for the first birth of an ox or a sheep or a goat; these are holy: their blood is to be dropped on the altar, and their fat burned for an offering made by fire, a sweet smell to the Lord.

Exodus 29:16

Then let it be put to death, so that the sides of the altar are marked with its blood.

Leviticus 3:2-5

And he is to put his hand on the head of his offering and put it to death at the door of the Tent of meeting; and Aaron's sons, the priests, are to put some of the blood on and round the altar.

Deuteronomy 15:19-22

All the first males to come to birth in your herd and your flock are to be holy to the Lord your God: the first birth of your ox is not to be used for work, the wool of your first lamb is not to be cut.

Treasury of Scripture Knowledge

Summary

Numbers 18:17

But the firstling of a cow, or the firstling of a sheep, or the firstling of a goat, thou shalt not redeem; they are holy: thou shalt sprinkle their blood upon the altar, and shalt burn their fat for an offering made by fire, for a sweet savour unto the LORD.

The firstling

Deuteronomy 15:19

Thou shalt

Exodus 29:16

Leviticus 3:2

Bible References

The firstling

Thou shalt

Then let it be put to death, so that the sides of the altar are marked with its blood.

And he is to put his hand on the head of his offering and put it to death at the door of the Tent of meeting; and Aaron's sons, the priests, are to put some of the blood on and round the altar.