'Chosen One' in the Bible

The Lord said, "I have made a covenant with my chosen one; I have made a promise on oath to David, my servant:

O children of Abraham, God's servant, you descendants of Jacob, God's chosen ones!

saying, "Don't touch my chosen ones! Don't harm my prophets!"

When he led his people out, they rejoiced; his chosen ones shouted with joy.

so I may see the prosperity of your chosen ones, rejoice along with your nation, and boast along with the people who belong to you.

He threatened to destroy them, but Moses, his chosen one, interceded with him and turned back his destructive anger.