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

For he wist not what to say,.... He did not know what he should say, or what was proper to be said by him, at such a time, in such circumstances, and before such persons; for they were sore afraid.

Albert Barnes Presbyterian @notesbybarnes

Verse 6. He wist not. He knew not. He was desirous of saying something, and he knew not what would be proper. (t) "wist not"