That OT believer Job, in the midst of massive trials, said, "The tents of robbers are at peace, and those who provoke God are secure.…Why do the wicked live, reach old age, and grow mighty in power?"
The psalmists frequently asked God, why do you tolerate godless men?
Those who will be killed during the tribulation will also cry out, to God, with a loud voice, “O Sovereign Lord, holy and true, HOW LONG before you will judge and avenge our blood on those who dwell on the earth?" -Rev 6:10
There WILL come a day, when, GOD WILL BREAK HIS SILENCE, and that day is very soon.