1 Kings 11:34-36

However, I will not take the entire kingdom out of his hand; but I will make him ruler all the days of his life for the sake of My servant David, whom I chose because he kept My commandments and My statutes. But I will take the kingdom out of his son’s hand and give it to you: ten tribes. Yet to his son I will give one tribe, so that My servant David may have a lamp always before Me in Jerusalem, the city where I have chosen to put My Name and Presence.