'Chosen One' in the Bible

Again David gathered every chosen one in Israel, thirty thousand.

O seed of Israel His servant, sons of Jacob, His chosen ones.

Then You spoke in a vision to Your holy one, and You said, I have laid help on a mighty one; I have lifted up a chosen one out of the people.

Behold, he shall come up like a lion from the swelling of Jordan against the home of the strong. But I will suddenly make him run away from her. And who is a chosen one I may appoint over it? For who is like Me? And who will summon Me? And who is that shepherd who will stand before Me?

Behold, he shall come up like a lion from the swelling of Jordan to the home of the strong. But I will make them suddenly run away from her. And who is a chosen one whom I will appoint over her? For who is like Me? And who will set Me the time? And who is that shepherd who will stand before Me?