'Off' in the Bible

Then Abraham set [off] seven ewe-lambs of the flock by themselves.

And Abimelech said to Abraham, "What [is the meaning of] these seven ewe-lambs that you have set [off] by themselves?"

But by your sword you shall live, and you shall serve your brother. But it shall be [that] when free yourself you shall tear off his yoke from your neck.

Then Laban said to Jacob, "What have you done that you {tricked me} and have carried off my daughters like captives of the sword?