'Unless' in the Bible

Then he said, "Let me go, for dawn is breaking." But he answered, "I will not let you go unless you bless me."

By this you shall be tested. By the life of Pharaoh you will not go out from here unless your youngest brother comes here.

Then Judah said to him, "The man solemnly admonished us, saying, 'You shall not see my face unless your brother [is] with you.'

but {if you will not send} [him], we will not go down, for the man said to us, 'You shall not see my face unless your brother [is] with you.'"

Then you said to your servants, 'Unless your youngest brother comes down with you, you shall not again see my face.'

then we said, 'We cannot go down. If our youngest brother [is] with us, then we shall go down. For we will not be able to see the face of the man unless our youngest brother [is] with us.'