Matthew Henry Presbyterian @wholebiblehenry

Here is, I. A prediction of Christ's kingdom now near approaching, Mar 9:1. That which is foretold, is, 1. That the kingdom of God would come, and would come so as to be seen: the kingdom of the Messiah shall be set up in the world by the utter destruction of the Jewish polity, which stood in the way of it; this was the restoring...

Commenting on Mark 9:1-13

John Gill Reformed Baptist @doctorgill

And there appeared unto them Elias with Moses,.... Or Moses and Elias, as all the Oriental versions read, as in Mat_. 17:3; see Gill on Mat 17:3, and they were talking with Jesus; concerning his decease, and what he was to do and suffer at Jerusalem, and of which he himself had lately talked with his disciples; so that this might have been a confirmation...