'Unless' in the Bible

For I say unto you, that unless your righteousness surpass that of the scribes and Pharisees, ye shall in no wise enter into the kingdom of the heavens.

Or how can any one enter into the house of the strong man and plunder his goods, unless first he bind the strong man? and then he will plunder his house.

And they were offended in him. And Jesus said to them, A prophet is not without honour, unless in his country and in his house.

and said, Verily I say to you, Unless ye are converted and become as little children, ye will not at all enter into the kingdom of the heavens.

Again going away a second time he prayed saying, My Father, if this cannot pass from me unless I drink it, thy will be done.