Judges 14:18

On the seventh day, before the sun set, the men of the city said to him, “What is sweeter than honey? What is stronger than a lion?” He said to them, “If you had not plowed with my heifer, ¹  you would not have solved my riddle!”

¹ sn Plowed with my heifer. This statement emphasizes that the Philistines had utilized a source of information which should have been off-limits to them. Heifers were used in plowing (Hos 10:11), but one typically used one’s own farm animals, not another man’s.