'Unless' in the Bible

For I tell you, unless your righteousness goes beyond that of the experts in the law and the Pharisees, you will never enter the kingdom of heaven.

How else can someone enter a strong man's house and steal his property, unless he first ties up the strong man? Then he can thoroughly plunder the house.

and said, "I tell you the truth, unless you turn around and become like little children, you will never enter the kingdom of heaven!

He went away a second time and prayed, "My Father, if this cup cannot be taken away unless I drink it, your will must be done."