Revelation 11:19

Then the temple of God was opened in heaven, and the ark of His covenant was seen in His temple.  And there were lightnings, noises, thunderings, an earthquake and great hail.

·         This was in the holy of holies; in the ark the tables of the law were kept (MH)

·         By terrible things in righteousness God would answer those prayers that were presented in His holy temple, now opened (MH)