SEV Biblia, Chapter 9:4
Y les apareció Elías con Moisés, que hablaban con Jesús.
John Gill's Bible Commentary
Ver. 4. And there appeared unto them Elias with Moses , etc..] 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”).
Matthew Henry Commentary
Verses 1-13 - Here is a prediction of the near approach Christ's kingdom. A glimps of that kingdom was given in the transfiguration of Christ. It is goo to be away from the world, and alone with Christ: and how good to be with Christ glorified in heaven with all the saints! But when it is well with us, we are apt not to care for others, and in the fulness of our enjoyments, we forget the many wants of our brethren. God own Jesus, and accepts him as his beloved Son, and is ready to accept us in him. Therefore we must own and accept him as our beloved Saviour, an must give up ourselves to be ruled by him. Christ does not leave the soul, when joys and comforts leave it. Jesus explained to the disciple the prophecy about Elias. This was very suitable to the ill usage of John Baptist.
Greek Textus Receptus
και 2532 CONJ ωφθη 3700 5681 V-API-3S αυτοις 846 P-DPM ηλιας 2243 N-NSM συν 4862 PREP μωσει 3475 N-DSM και 2532 CONJ ησαν 2258 5713 V-IXI-3P συλλαλουντες 4814 5723 V-PAP-NPM τω 3588 T-DSM ιησου 2424 N-DSM
Robertson's NT Word Studies
9:4 {Elijah with Moses} (eleias sun mwusei). Matthew and Luke have "Moses and Elijah." Both, as a matter of fact were prophets and both dealt with law. Both had mysterious deaths. The other order in #Mr 9:5.