'Own' in the Bible

Do not be concerned about your own interests, but also be concerned about the interests of others.

In God's own form existed he, and shared with God equality, deemed nothing needed grasping.

For all the others look after their own interests, not after those of Jesus the Messiah.

and be found in him, not having a righteousness of my own that comes from the Law, but one that comes through the faithfulness of the Messiah, the righteousness that comes from God and that depends on faith.