Mark 9:13

13 But I say to you that Elijah has come, and they have done to him whatever they were pleased to do, even as the Writings say about him.

Mark 9:13 Meaning and Commentary

Mark 9:13

But I say unto you, that Elias is indeed come
Meaning John the Baptist, who in prophecy is designed by him.

And they have done unto him whatsoever they listed;
(See Gill on Matthew 17:12); which words should be read in a parenthesis, as they are in the Vulgate Latin version; for what follows, as

it is written of him,
respects not what the Scribes and Pharisees, and the people of the Jews did to John at their pleasure; despising his ministry and message, rejecting the counsel of God delivered by him, and remaining impenitent and unbelieving, notwithstanding his powerful and awakening ministry, with many other things, which are no where written of him; but the words regard his coming, and the prophecies concerning him, and particularly, that under the name of Elijah, in ( Malachi 4:5 ) and which had had their accomplishment.

Mark 9:13 In-Context

11 And they put a question to him, saying, Why do the scribes say that Elijah has to come first?

12 And he said to them, Truly, Elijah does come first, and puts all things in order; and how is it said in the Writings that the Son of man will go through much sorrow and be made as nothing?

13 But I say to you that Elijah has come, and they have done to him whatever they were pleased to do, even as the Writings say about him.

14 And when they came to the disciples, they saw a great mass of people about them, and scribes questioning them.

15 And straight away all the people, when they saw him, were full of wonder, and running to him, gave him worship.