And David realized that the LORD had established him as king over Israel and had highly exalted his kingdom for the sake of His people Israel.
We may observe here, 1. There is no man that has such a sufficiency in himself but he has need of his neighbours and has reason to be thankful for their help: David had a very large kingdom, Hiram a very little one; yet David could not build himself a house to his mind unless Hiram furnished him with both workmen and materials, Ch1 14:1.
Commenting on 1 Chronicles 14:1-7
his kingdom was lifted up on high, because of his people Israel--This is an important truth, that sovereigns are invested with royal honor and authority, not for their own sakes so much as for that of their people. But while it is true of all kings, it was especially applicable to the monarchs of Israel, and even David was made to know that all his...
And David perceived that the LORD had confirmed him king over Israel, for his kingdom was lifted up on high, because of his people Israel. (a) Because of God's promise made to the people of Israel.