18 So David went in flight and got away and came to Ramah, to Samuel, and gave him an account of all Saul had done to him. And he and Samuel went and were living in Naioth. 19 And word was given to Saul that David was at Naioth in Ramah. 20 And Saul sent men to take David; and when they saw the band of prophets at work, with Samuel in his place at their head, the spirit of God came on Saul's men, and they became like prophets. 21 And Saul, having news of this, sent other men, who in the same way became like prophets. And a third time Saul sent men, and they like the others became like prophets. 22 Then he himself went to Ramah, and came to the great water-spring in Secu; and questioning the people he said, Where are Samuel and David? And one said, They are at Naioth in Ramah. 23 And he went on from there to Naioth in Ramah: and the spirit of God came on him, and he went on, acting like a prophet, till he came to Naioth in Ramah. 24 And he took off his clothing, acting like a prophet before Samuel, and falling down he was stretched out, without his clothing, all that day and all that night. This is the reason for the saying, Is even Saul among the prophets?
Matthew Henry's Commentary on 1 Samuel 19:18-24
Commentary on 1 Samuel 19:11-24
(Read 1 Samuel 19:11-24)
Michal's stratagem to gain time till David got to a distance was allowable, but her falsehood had not even the plea of necessity to excuse it, and manifests that she was not influenced by the same spirit of piety which had dictated Jonathan's language to Saul. In flying to Samuel, David made God his refuge. Samuel, as a prophet, was best able to advise him what to do in this day of distress. He met with little rest or satisfaction in Saul's court, therefore went to seek it in Samuel's church. What little pleasure is to be had in this world, those have who live a life of communion with God; to that David returned in the time of trouble. So impatient was Saul after David's blood, so restless against him, that although baffled by one providence after another, he could not see that David was under the special protection of God. And when God will take this way to protect David, even Saul prophesies. Many have great gifts, yet no grace; they may prophesy in Christ's name, yet are disowned by him. Let us daily seek for renewing grace, which shall be in us as a well of water springing up into everlasting life. Let us cleave to truth and holiness with full purpose of heart. In every danger and trouble, let us seek protection, comfort, and direction in God's ordinances.