2 Peter 1:18

18 And we heard this voice when it came from heaven while we were with Him on the holy mountain.

2 Peter 1:18 In-Context

16 For we did not follow cleverly contrived myths when we made known to you the power and coming of our Lord Jesus Christ; instead, we were eyewitnesses of His majesty.
17 For when He received honor and glory from God the Father, a voice came to Him from the Majestic Glory: This is My beloved Son. I take delight in Him!
18 And we heard this voice when it came from heaven while we were with Him on the holy mountain.
19 So we have the prophetic word strongly confirmed. You will do well to pay attention to it, as to a lamp shining in a dismal place, until the day dawns and the morning star arises in your hearts.
20 First of all, you should know this: no prophecy of Scripture comes from one's own interpretation,
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