2 Peter 1:18
"And this voice which came from heaven we heard, when we were with him in the holy mount."
Cross References (ranked by relevance)
Matthew 17:6
And when the disciples heard it, they fell on their face, and were sore afraid.
Joshua 5:15
And the captain of the LORD’s host said unto Joshua, Loose thy shoe from off thy foot; for the place whereon thou standest is holy. And Joshua did so.
Exodus 3:5
And he said, Draw not nigh hither: put off thy shoes from off thy feet, for the place whereon thou standest is holy ground.
Isaiah 11:9
They shall not hurt nor destroy in all my holy mountain: for the earth shall be full of the knowledge of the LORD, as the waters cover the sea.