Levi.

Genesis 29:34
Once again Leah conceived and gave birth to a son, and she said, "Now at last my husband will become attached to me, because I have borne him three sons." So he was named Levi.

Genesis 49:5-7
Simeon and Levi are brothers; their swords are weapons of violence. . . .

Exodus 6:16
These were the names of the sons of Levi according to their records: Gershon, Kohath, and Merari. Levi lived 137 years.

Numbers 3:17-22
These were the sons of Levi by name: Gershon, Kohath, and Merari. . . .

Numbers 26:57, 58
Now these were the Levites registered by their clans: The Gershonite clan from Gershon, the Kohathite clan from Kohath, and the Merarite clan from Merari. . . .

Deuteronomy 33:8-11
Concerning Levi he said: "Give Your Thummim to Levi and Your Urim to Your godly one, whom You tested at Massah and contested at the waters of Meribah. . . .

1 Chronicles 2:1, 11, 16
These were the sons of Israel: Reuben, Simeon, Levi, Judah, Issachar, Zebulun, . . .

1 Chronicles 6:1-3
The sons of Levi: Gershom, Kohath, and Merari. . . .

1 Chronicles 22:1-26:32
Then David said, "This is the house of the LORD God, and this is the altar of burnt offering for Israel." . . .

Gershon.

1 Chronicles 6:16
The sons of Levi: Gershom, Kohath, and Merari.