'Unless' in the Bible

But no one is able to enter into the house of a strong [man] [and] plunder his property unless he first ties up the strong [man], and then he can thoroughly plunder his house.

(For the Pharisees and all the Jews do not eat unless they wash their hands {ritually}, [thus] holding fast to the traditions of the elders.

And [when they come] from the marketplace, they do not eat unless they wash. And there are many other [traditions] which they have received [and] hold fast to--[for example,] the washing of cups and pitchers and bronze kettles and dining couches.)