'Ours' in the Bible

“Listen to us, my lord; you are a prince of God [a mighty prince] among us; bury your dead in the choicest of our graves; none of us will refuse you his grave or hinder you from burying your dead [wife].”

Then Abimelech said, What have you done to us? one of the people might well have had connection with your wife, and the sin would have been ours.

And the herdmen of Gerar did strive with Isaac's herdmen, saying, The water is ours: and he called the name of the well Esek; because they strove with him.

For all the riches which God hath taken from our father, that is ours, and our children's: now then, whatsoever God hath said unto thee, do.

Shall not their cattle and their substance and every beast of theirs be ours? only let us consent unto them, and they will dwell with us.

And he said, I have had news that there is grain in Egypt: go down there and get grain for us, so that life and not death may be ours.