'People of God' in the Bible

And the chief of all the people, even of all the tribes of Israel, presented themselves in the assembly of the people of God, four hundred thousand footmen that drew sword.

And the woman said, Why then hast thou thought such a thing against the people of God? for the king doth speak this thing as one who is faulty, in that the king doth not bring home again his banished.

There remaineth therefore a rest to the people of God.

Choosing rather to suffer affliction with the people of God, than to enjoy the pleasures of sin for a season;

Who in time past were not a people, but are now the people of God: who had not obtained mercy, but now have obtained mercy.