Genesis 38:3-5

New King James Version

³ So she conceived and bore a son, and he called his name ^(A)Er. ⁴ She conceived again and bore a son, and she called his name ^(B)Onan. ⁵ And she conceived yet again and bore a son, and called his name ^(C)Shelah. He was at Chezib when she bore him.