Judges 14:12

And Samson said unto them, evidently as soon as the festivities began, I will now put forth a riddle unto you, announce or propose it to them; if ye can certainly declare it me, give its solution, within the seven days of the feast, and find it out, then I will give you thirty sheets, ordinary garments, and thirty change of garments, dresses of state, to be worn on festival occasions;