Numbers 3:13
“Because all the firstborn are mine; for on the day that I smote all the firstborn in the land of Egypt I hallowed unto me all the firstborn in Israel, both man and beast: mine shall they be: I am the Lord.”
And the Lord spake unto Moses, saying,
And I, behold, I have taken the Levites from among the children of Israel instead of all the firstborn that openeth the matrix among the children of Israel: therefore the Levites shall be mine;
Because all the firstborn are mine; for on the day that I smote all the firstborn in the land of Egypt I hallowed unto me all the firstborn in Israel, both man and beast: mine shall they be: I am the Lord.
And the Lord spake unto Moses in the wilderness of Sinai, saying,
Number the children of Levi after the house of their fathers, by their families: every male from a month old and upward shalt thou number them.
Why This Verse Was Tagged
This verse was identified by multiple independent signals: structural patterns, prophetic context, and vocabulary — then validated by a probability model (Snorkel).
Counter-Arguments
The strongest case that this verse does not belong in this theme.

Cross-References
“Sanctify unto me all the firstborn, whatsoever openeth the womb among the children of Israel, both of man and of beast: it is mine.”
“(As it is written in the law of the Lord, Every male that openeth the womb shall be called holy to the Lord;)”
“Thou shalt not delay to offer the first of thy ripe fruits, and of thy liquors: the firstborn of thy sons shalt thou give unto me.”
“To the general assembly and church of the firstborn, which are written in heaven, and to God the Judge of all, and to the spirits of just men made perfect,”
“And it came to pass, that at midnight the Lord smote all the firstborn in the land of Egypt, from the firstborn of Pharaoh that sat on his throne unto the firstborn of the captive that was in the dungeon; and all the firstborn of cattle.”