Exodus 13:2,12-16
Sanctify to me all the firstborn, whatever opens the womb among the children of Israel, both of man and of beast: it is mine.
Nave's Topical Index—AKJV

Exodus 22:29,30
You shall not delay to offer the first of your ripe fruits, and of your liquors: the firstborn of your sons shall you give to me.
Nave's Topical Index—AKJV

Exodus 34:19,20
All that opens the matrix is mine; and every firstling among your cattle, whether ox or sheep, that is male.
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Leviticus 27:26
Only the firstling of the beasts, which should be the LORD's firstling, no man shall sanctify it; whether it be ox, or sheep: it is the LORD's.
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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 to me all the firstborn in Israel, both man and beast: my shall they be: I am the LORD.
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Numbers 8:17,18
For all the firstborn of the children of Israel are mine, both man and beast: on the day that I smote every firstborn in the land of Egypt I sanctified them for myself.
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Deuteronomy 15:19-23
All the firstling males that come of your herd and of your flock you shall sanctify to the LORD your God: you shall do no work with the firstling of your bullock, nor shear the firstling of your sheep.
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Nehemiah 10:36
Also the firstborn of our sons, and of our cattle, as it is written in the law, and the firstborn of our herds and of our flocks, to bring to the house of our God, to the priests that minister in the house of our God:
Nave's Topical Index—AKJV