Exodus 3:5

3:5 God said, “Do not approach any closer! Take your sandals off your feet, for the place where you are standing is holy ground.”

Exodus 19:12

19:12 You must set boundaries for the people all around, saying, ‘Take heed to yourselves not to go up on the mountain nor touch its edge. Whoever touches the mountain will surely be put to death!

Psalms 89:7

89:7 a God who is honored in the great angelic assembly,

and more awesome than all who surround him?

Hebrews 12:28-29

12:28 So since we are receiving an unshakable kingdom, let us give thanks, and through this let us offer worship pleasing to God in devotion and awe. 12:29 For our God is indeed a devouring fire.