and this voice we ourselves heard borne out of heaven, when we were with him in the holy mount.

And this voice we heard brought from heaven, when we were with him in the holy mount.

and this voice we heard uttered from heaven, being with him on the holy mountain.

and this voice we, we did hear, out of heaven borne, being with him in the holy mount.

And we ourselves heard these words come from Heaven, when we were with Him on the holy mountain.

We also heard this voice conveyed from heaven, when we were with him on the holy mountain.

These were the words that we heard, borne to our ears from heaven, when we were with him on that sacred mountain.

In the holy mount. He calls it the holy mount, for the same reason that the ground was called holy where God appeared to Moses. For wherever the Lord comes, as he is the fountain of all holiness, he makes holy all things by the odor of his presence. And by this mode of speaking we are taught, not only to receive God reverently wherever he shews himself, but also to prepare ourselves for holiness, as soon as he comes nigh us, as it was commanded the people when the law was proclaimed on Mount Sinai. And it is a general truth, "Be ye holy, for I am holy, who dwell in the midst of you." (Leviticus 11:44; 19:2.)

And this voice which came from heaven we heard - To wit, Peter, and James, and John.
When we were with him in the holy mount - Called "holy" on account of the extraordinary manifestation of the Redeemer's glory there. It is not certainly known what mountain this was, but it has commonly been supposed to be Mount Tabor. See the notes at Matthew 17:1.

And this voice - we heard - That is, himself, James, and John heard it, and saw this glory; for these only were the εποπται, beholders, on the holy mount. It is worthy of remark that our blessed Lord, who came to give a new law to mankind, appeared on this holy mount with splendor and great glory, as God did when he came on the holy mount, Sinai, to give the old law to Moses. And when the voice came from the excellent glory, This is my Son, the beloved One, in whom I have delighted; hear him: the authority of the old law was taken away. Neither Moses nor Elijah, the law nor the prophets, must tabernacle among men, as teaching the whole way of salvation, and affording the means of eternal life; these things they had pointed out, but these things they did not contain; yet the fulfillment of their types and predictions rendered their declarations more firm and incontestable. See below.

And this voice, which came from heaven, we heard,.... Peter, who wrote this epistle, and James and John, the favourite disciples of Christ; and who were a sufficient number to bear witness of what they then saw and heard:
when we were with him; and saw his glory, and the glory of Moses and Elias, and were so delighted with his company, and theirs, and with communion with him, that Peter, in the name of the rest, desired to stay there:
in the holy mount; the Ethiopic version reads, "in the mountain of his sanctuary"; and so Grotius understands it of Mount Moriah, on which the temple was built, called the holy hill, and the holy hill of Zion; and supposes that this voice was heard in the temple, and that it refers to John 12:28, but without any foundation; for the mount on which Christ was transfigured is here meant; and which was either, as is generally said, Tabor, a mountain in Galilee; or it may be Lebanon, which was near Caesarea Philippi, in the parts of which Christ then was: and it is called "holy", from his presence or transfiguration on it, who is the Holy One; just as the land on which Moses was, and the city and temple of Jerusalem, and Mount Sion, and Sinai, are called "holy", from the presence of the holy God there, Exodus 3:5. Now such a declaration of the honour and glory of Christ, as the Son of God, being made by God the Father, in a voice from heaven, which the apostles heard with their ears, at the same time that they saw with their eyes his human body glorified in an amazing manner, was to them a confirming evidence that he would come again in power and glory; and upon this evidence they declared, and made known to the saints, the power and coming of Christ; though not on this evidence only, but also upon the more sure word of prophecy, which entirely agrees with it.

which came--rather as Greek, "we heard borne from heaven."
holy mount--as the Transfiguration mount came to be regarded, on account of the manifestation of Christ's divine glory there.
we--emphatical: we, James and John, as well as myself.

And we - Peter, James, and John. St. John was still alive. Being with him in the holy mount - Made so by that glorious manifestation, as mount Horeb was of old, Exodus 3:4-5.