John Mark
Mark 9:11ESV·traditional attribution

And they asked him, “Why do the scribes say that first Elijah must come?”

Matthew Henry Presbyterian

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

And they asked him, saying,.... Being put in mind of it, by seeing Elias on the mount, or else by what Christ had said concerning his resurrection, or both: why say the Scribes, the Vulgate Latin adds, "and Pharisees", that Elias must first come? before the Messiah comes, or before the setting up his kingdom in greater glory; See Gill on Mat 17:10.

Albert Barnes Presbyterian

Verses 11-13. Why say the Scribes, etc. and . (x) "Elias"