Genesis 38:11

11Then Judah said to Tamar his daughter-in-law, aRemain a widow in your father’s house, till Shelah my son grows up”—for he feared that he would die, like his brothers. So Tamar went and remained bin her father’s house.

Genesis 38:26

26Then Judah identified them and said, c“She is more righteous than I, since dI did not give her to my son Shelah.” And he did not know her again.

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