The sons of Levi: Gershon, Kohath, and Merari.

She became pregnant again and had another son. She said, “Now this time my husband will show me affection, ¹  because I have given birth to three sons for him.” That is why he was named Levi. ² 

Then Jacob said to Simeon and Levi, “You have brought ruin ¹  on me by making me a foul odor ²  among the inhabitants of the land – among the Canaanites and the Perizzites. I ³  am few in number; they will join forces against me and attack me, and both I and my family will be destroyed!”