Isaiah 64:3

3 When You did awesome deeds that we did not expect, You came down, and the mountains quaked at Your presence.

Isaiah 64:3 Meaning and Commentary

Isaiah 64:3

When thou didst terrible things, which we looked not for, thou
camest down
Referring to the wonderful things God did in Egypt, at the Red sea, and in the wilderness, and particularly at Mount Sinai, things that were unexpected, and not looked for; then the Lord came down, and made visible displays of his power and presence, especially on Mount Sinai; see ( Exodus 19:18 ) : the mountains flowed down at thy presence;
not Sinai only, but others also; Kimchi says Seir and Paran; ( Judges 5:4 Judges 5:5 ) ( Psalms 68:7 Psalms 68:8 ) ( Habakkuk 3:3 Habakkuk 3:6 ) .

Isaiah 64:3 In-Context

1 If only You would tear the heavens open [and] come down, so that mountains would quake at Your presence-

2 as fire kindles the brushwood, and fire causes water to boil- to make Your name known to Your enemies, so that nations will tremble at Your presence!

3 When You did awesome deeds that we did not expect, You came down, and the mountains quaked at Your presence.

4 From ancient times no one has heard, no one has listened, no eye has seen any God except You, who acts on behalf of the one who waits for Him.

5 You welcome the one who joyfully does what is right; they remember You in Your ways. But we have sinned, and You were angry; we will remain in Your ways and be saved.