'Unless' in the Bible

For I say to you that unless your righteousness greatly surpasses [that] of the scribes and Pharisees, you will never enter into the kingdom of heaven.

Or how can someone enter into the house of a strong [man] and steal his property, unless he first ties up the strong [man]? And then he can thoroughly plunder his house.

and said, "Truly I say to you, unless you turn around and become like young children, you will never enter into the kingdom of heaven!

So also my heavenly Father will do to you, unless each of you forgives his brother from your hearts!"

And unless those days had been shortened, {no human being would be saved}. But for the sake of the elect, those days will be shortened.

Again for the second time he went away [and] prayed, saying, "My Father, if this cannot pass unless I drink it, your will must be done."