'Unless' in the Bible

But no one is able to enter a strong man's house and steal his property unless he first ties up the strong man. Then he can thoroughly plunder his house.

(For the Pharisees and all the Jews do not eat unless they perform a ritual washing, holding fast to the tradition of the elders.

And when they come from the marketplace, they do not eat unless they wash. They hold fast to many other traditions: the washing of cups, pots, kettles, and dining couches.)