Compare to Exodus 13:11 and following. The directions of the preceding legislation (see Numbers 18:15 and following) are here assumed, with the inj…

All the firstling males... you shall sanctify — that is, recognize them as the property of Jehovah by not using them for ordinary…

All the firstborn males. Another caution is added, that they should make no profit from the firstborn; for they might have used the labor …

All the firstling males that come of your herd, or of your
flock, you shall sanctify unto the Lord your …

Here is instruction on what to do with the firstlings. We are not now limited as the Israelites were; we make no difference between a first calf, o…