1 Kings 11:12-13; 1 Kings 11:32

12 However, I will not do it during your lifetime because of your father David; I will tear it out of your son's hand. 13 Yet, I will not tear the entire kingdom away from him. I will give one tribe to your son because of my servant David and because of Jerusalem that I chose."
32 but one tribe will remain his because of my servant David and because of Jerusalem, the city I chose out of all the tribes of Israel.