1 Samuel 18:6-9

The women came out—singing and dancing— See Exodus 1:20. Saul probably received his first suspicion that David was that neighbour of his who was better than himself, to whom the Lord, as Samuel had told him, had given the kingdom, ch. 1 Samuel 15:28 from these acclamations of the women; which, I suppose, brought this declaration of the prophet to his remembrance, without which he would have treated this exalted encomium with neglect. This appears probable from his saying, And what can he have more but the kingdom? 1 Samuel 18:8 and from what is further added, Saul eyed David from that day.