Judges 14:4 in the King James Version
But his father and his mother knew not that it was of the LORD, that he sought an occasion against the Philistines: for at that time the Philistines had dominion over Israel.
Context
3 Then his father and his mother said to him, “Isn’t there a woman among your brothers’ daughters, or among all my people, that you go to take a wife of the uncircumcised Philistines?” Samson said to his father, “Get her for me, for she pleases me well.”
4 But his father and his mother didn’t know that it was of the LORD; for he sought an occasion against the Philistines. Now at that time the Philistines ruled over Israel.
5 Then Samson went down to Timnah with his father and his mother, and came to the vineyards of Timnah; and behold, a young lion roared at him.