Numbers 3:13-15

Amplified Bible, Classic Edition

¹³ For all the firstborn are Mine. On the day that I slew all the firstborn in the land of Egypt, I consecrated for Myself all the firstborn in Israel, both man and beast; Mine they shall be. I am the Lord.

¹⁴ And the Lord said to Moses in the Wilderness of Sinai,

¹⁵ Number the sons of Levi by their fathers’ houses and by families. Every male from a month old and upward you shall number.