Mark 10:1

Our Lord Jesus was an itinerant Preacher, did not continue long in a place, for the whole land of Canaan was his parish, or diocese, and therefore he would visit every part of it, and give instructions to those in the remotest corners of it. Here we have him in the coasts of Judea, by the further side of Jordan eastward, as we found him, not long since, in the utmost borders westward, near Tyre and Sidon. Thus was his circuit like that of the sun, from whose light and heat nothing is hid. Now here we have him, I. Resorted to by the people, Mar 10:1. Wherever he was, they flocked after him in crowds; they came to him again, as they had done when he had formerly been in these parts, and, as he was wont, he taught them again. Note, Preaching was Christ's constant practice; it was what he was used to, and, wherever he came, he did as he was wont. In Matthew it is said, He healed them; here it is said, He taught them: his cures were to confirm his doctrine, and to recommend it, and his doctrine was to explain his cures, and illustrate them. He taught them again. Note, Even those whom Christ hath taught, have need to be taught again. Such is the fulness of the Christian doctrine, that there is still more to be learned; and such our forgetfulness, that we need to be reminded of what we do know.

— Matthew Henry's Concise Commentary (public domain)