Exodus 19:19-21 New American Bible (Revised Edition) (NABRE)
19 The blast of the shofar grew louder and louder, while Moses was speaking and God was answering him with thunder.
20 When the Lord came down upon Mount Sinai, to the top of the mountain, the Lord summoned Moses to the top of the mountain, and Moses went up. 21 Then the Lord told Moses: Go down and warn the people not to break through to the Lord in order to see him; otherwise many of them will be struck down.
New American Bible (Revised Edition) (NABRE)
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