Then the Spirit of the LORD will rush upon you, and you will prophesy with them and be turned into another man.
Samuel is here executing the office of a prophet, giving Saul full assurance from God that he should be king, as he was afterwards, according to these prophecies which went before of him. I. He anointed him and kissed him, Sa1 10:1.
Commenting on 1 Samuel 10:1-8
And the Spirit of the Lord will come upon thee,.... As a spirit of prophecy, so the Targum; whereby he would be enabled at once to compose psalms and hymns of praise, and sing them in a proper manner, though he had not been trained up in this exercise in the school of the prophets; which made it more wonderful to those that knew him...
the Spirit of the Lord will come upon thee--literally, "rush upon thee," suddenly endowing thee with a capacity and disposition to act in a manner far superior to thy previous character and habits; and instead of the simplicity, ignorance, and sheepishness of a peasant, thou wilt display an energy, wisdom, and magnanimity worthy of a prince.