9 Saul turned and left Samuel. At that very moment God transformed him - made him a new person! And all the confirming signs took place the same day. 10 When Saul and his party got to Gibeah, there were the prophets, right in front of them! Before he knew it, the Spirit of God came on Saul and he was prophesying right along with them. 11 When those who had previously known Saul saw him prophesying with the prophets, they were totally surprised. "What's going on here? What's come over the son of Kish? How on earth did Saul get to be a prophet?" 12 One man spoke up and said, "Who started this? Where did these people ever come from?" That's how the saying got started, "Saul among the prophets! Who would have guessed?!" 13 When Saul was done prophesying, he returned home. 14 His uncle asked him and his servant, "So where have you two been all this time?" "Out looking for the donkeys. We looked and looked and couldn't find them. And then we found Samuel!" 15 "So," said Saul's uncle, "what did Samuel tell you?" 16 Saul said, "He told us not to worry - the donkeys had been found." But Saul didn't breathe a word to his uncle of what Samuel said about the king business.
Matthew Henry's Commentary on 1 Samuel 10:9-16
Commentary on 1 Samuel 10:9-16
(Read 1 Samuel 10:9-16)
The signs Samuel had given Saul, came to pass punctually; he found that God had given him another heart, another disposition of mind. Yet let not an outward show of devotion, and a sudden change for the present, be too much relied on; Saul among the prophets was Saul still. His being anointed was kept private. He leaves it to God to carry on his own work by Samuel, and sits still, to see how the matter will fall.