'Acting' in the Bible

Have we not all one father? has not one God made us? why are we, every one of us, acting falsely to his brother, putting shame on the agreement of our fathers?

Judah has been acting falsely, and a disgusting thing has been done in Jerusalem; for Judah has made unclean the holy place of the Lord which is dear to him, and has taken as his wife the daughter of a strange god.

"They will be mine," says Yahweh of hosts, "on the day that I [am] acting, [my] treasured possession. I will have compassion on them as a man has compassion on his son who serves him.