Esias 64:1

1 If thou wouldest open the heaven, trembling will take hold upon the mountains from thee, and they shall melt,

Esias 64:1 In-Context

1 If thou wouldest open the heaven, trembling will take hold upon the mountains from thee, and they shall melt,
2 as wax melts before the fire; and fire shall burn up the enemies, and thy name shall be manifest among the adversaries: at thy presence the nations shall be troubled,
3 whenever thou shalt work gloriously; trembling from thee shall take hold upon the mountains.
4 From of old we have not heard, neither have our eyes seen a God beside thee, and thy works which thou wilt perform to them that wait for mercy.
5 For shall happen to them that work righteousness, and they shall remember thy ways: behold, thou wast angry and we have sinned; therefore we have erred,

The Brenton translation of the Septuagint is in the public domain.