John Gills Exposition of the Bible Commentary - 1 Samuel 17:15
But David went, and returned from Saul ,.... Or "from above Saul"; Josephus F21 Antiqu. l. 6. c. 8. sect. 2. says, the physicians of Saul advised to get a man to stand υπερ κεφαλνς , "over his head", and sing psalms and hymns to him; and Saul being recovered from his frenzy and melancholy, by means of David's music, he was dismissed from him, or had leave to go home, or he returned upon Saul's taking the field; though one would think, if he was now his armourbearer, he would have... read more
Matthew Henry's Complete Commentary - 1 Samuel 17:12-30
Forty days the two armies lay encamped facing one another, each advantageously posted, but neither forward to engage. Either they were parleying and treating of an accommodation or they were waiting for recruits; and perhaps there were frequent skirmishes between small detached parties. All this while, twice a day, morning and evening, did the insulting champion appear in the field and repeat his challenge, his own heart growing more and more proud for his not being answered and the people of... read more