'Changes' in the Bible

Samson said to them, "Let me tell you a riddle now. If you can declare it to me within the seven days of the feast, and find it out, then I will give you thirty linen garments and thirty changes of clothing;

but if you can't declare it to me, then you shall give me thirty linen garments and thirty changes of clothing." They said to him, "Put forth your riddle, that we may hear it."

The Spirit of Yahweh came mightily on him, and he went down to Ashkelon, and struck thirty men of them, and took their spoil, and gave the changes [of clothing] to those who declared the riddle. His anger was kindled, and he went up to his father's house.