Isaiah 64:3

3 When you did terrible things which we didn't look for, you came down, 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 Oh that you would tear the heavens, that you would come down, that the mountains might quake at your presence,

2 as when fire kindles the brushwood, [and] the fire causes the waters to boil; to make your name known to your adversaries, that the nations may tremble at your presence!

3 When you did terrible things which we didn't look for, you came down, the mountains quaked at your presence.

4 For from of old men have not heard, nor perceived by the ear, neither has the eye seen a God besides you, who works for him who waits for him.

5 You meet him who rejoices and works righteousness, those who remember you in your ways: behold, you were angry, and we sinned: in them [have we been] of long time; and shall we be saved?