Communed together - Talked together.
And reasoned - They reasoned, doubtless, about the probability or improbability that Jesus was the Messiah; about the evidence of his resurrection; about what was to be done in the present state of things.
Jesus himself drew near - The disciples were properly employed. Their minds were anxious about the state of things, and they endeavored to arrive at the truth. In this state of things Jesus came to solve their doubts, and to establish them in the belief that he was the Christ; and we may learn from this that Christ will guide those who are sincerely endeavoring to know the truth. They who candidly and seriously endeavor to ascertain what is true and right he will direct; and often in an unexpected manner he will appear, to dissipate their doubts and to scatter all their perplexities. "Our" duty is sincerely to strive to ascertain the truth, and to do his will; and if his people do this, he will not leave them to perplexity and wandering.

And reasoned - Συζητειν, concerning the probability or improbability of Christ being the Messiah, or of his resurrection from the dead. It was a laudable custom of the Jews, and very common also, to converse about the law in all their journeyings; and now they had especial reason to discourse together, both of the law and the prophets, from the transactions which had recently taken place.

And it came to pass, that while they communed together,.... About the above said things:
and reasoned; with one another; about the truth and credibility of the late report:
Jesus himself drew near: the Persic version adds, "suddenly"; he came up at once to them, as if he had been a traveller on the road, and overtook them:
and went with them; joined himself in company to them, and travelled with them.

While they communed. About Jesus and his death.
Jesus . . . drew near. When our thoughts are upon him we are likeliest to enjoy his presence.