Acts 9:7

No external means will of themselves work a change in the soul, without the Spirit and grace of God, which distinguish between some and others; among these that journeyed together, one is taken, and the others left. They stood speechless; none of them said, Who art thou, Lord? or, What wilt thou have me to do? as Paul did, but none of God's children are born dumb.

And the men which journeyed with him,....

And the men which journeyed with him - Why these men attended him is unknown. They might have been appointed to aid him, or they may have been travelers with whom Saul had accidentally fallen in. Stood speechless - In Act 26:14, it is said that they all fell to the earth at the appearance of the light. But there is no contradiction. The narrative in that place refers to the immediate effect of the appearance of the light. They were immediately smitten to the ground together. This was before the voice spake to Saul, Act 26:

Stood speechless, hearing a voice, but seeing no man - The men were εννεοι, stupified, hearing της φωνης, the voice or thunder, but not distinguishing the words, which were addressed to Saul alone; and which were spoken out of the thunder, or in a small, still voice, after the peal had ceased. The remarkable case, 1Ki 19:11-13, may serve to illustrate that before us. And he said, Go forth, and stand upon the mount before the Lord; and the Lord passed by, and a great and strong wind rent the mountains, and brake in pieces the rocks before the Lard; and after the wind an earthquake; and after the earthquake a fire; and after the fire a still small voice; and when Elijah heard it, he wrapped his face in his mantle, and went out, and stood in the entering in of the cave, and behold, there came a voice unto him, and said, What Dost Thou Here, Elijah! The thunder must have been heard by all; the small, still voice by Saul alone. This consideration amply reconciles the passage in the text with that in Act 22:9, where Paul says, They that were with me saw the light and were afraid, but they heard not the voice of him that spoke with one. They had heard the thunder which followed the escape of the lightning, but they heard not the voice of him that spake to Saul; they did not hear the words, I am Jesus whom thou persecutest, etc.; but they saw and heard enough to convince them that the whole was supernatural; for they were all struck down to the earth with the splendor of the light, and the sound of the thunder, which I suppose took place on this occasion. It has been a question among divines, whether Jesus Christ did really appear to Saul on this occasion. The arguments against the real appearance are not strong. St. Luke tells us that those who were with him heard the voice, but they saw no man; which is a strong intimation that he saw what they did not. […]