Mark 9:4

4 And Elijah appeared to them together with Moses, and they were talking with Jesus.

Mark 9:4 Meaning and Commentary

Mark 9:4

And there appeared unto them Elias with Moses
Or Moses and Elias, as all the Oriental versions read, as in Mt. 17:3, (See Gill on Matthew 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 of these things to them; (See Gill on Matthew 17:3).

Mark 9:4 In-Context

2 And after six days, Jesus took along Peter and James and John, and led them to a high mountain by themselves alone. And he was transfigured before them,

3 and his clothing became radiant--extremely white, like no cloth refiner on earth can {make so white}.

4 And Elijah appeared to them together with Moses, and they were talking with Jesus.

5 And Peter answered [and] said to Jesus, "Rabbi, it is good [that] we are here! And let us make three shelters, one for you and one for Moses and one for Elijah."

6 (For he did not know what he should answer, because they were terrified.)