NET
12 David realized that the Lord had established him as king over Israel and that he had elevated his kingdom for the sake of his people Israel.
Darby
12 And David perceived that Jehovah had established him king over Israel, and that he had exalted his kingdom because of his people Israel.
KJV
12 And David perceived that the LORD had established him king over Israel, and that he had exalted his kingdom for his people Israel's sake.