Genesis 38:8

Wycliffe Bible

⁸ Therefore Judah said to Onan, his son, Enter thou [in] to the wife of thy brother, and be thou fellowshipped to her, that thou raise seed to thy brother. (And so Judah said to his son Onan, Sleep with thy brother’s wife, and be fellowshipped to her, and so raise thou up seed, or some sons, for thy brother.)