1 Samuel 19:2-3

Until the morning. Rather, "in the morning." Saul's purpose was taking shape, and as there are always men too ready to commit crime at the bidding of a king, there was the danger that secret murder might be the quick result of Saul's open communication of his wishes to his men of war. Jonathan, therefore, warns David of the king's malice, and urges him to hide himself until he has made a last entreaty for him. This was to take place in the field, the open common land. There was no idea of David overhearing the conversation, but when the king took his usual walk Jonathan was to join him, and hold a conference with him apart in the unenclosed hill pastures. After probing his father's real feelings he would continue his walk, and, without awakening any suspicions, would meet David and communicate to him the result. What I see, that I will tell thee. More exactly, "I will see what (he says), and will tell thee."