Isaiah 26:20, 21
"Come, my people, enter into your rooms,
And close your doors behind you;
Hide for a little while.
Until indignation runs it's course.
For behold, the LORD is about to come out from His place
To punish the inhabitants of the earth for their iniquity;
And the earth will reveal her bloodshed
And will no longer cover her slain."
* Some will speak out, take action, and may be martyred.
Daniel 11:31-35
Forces from him will arise, desecrate the sanctuary fortress, and do away with the regular sacrifice. And they will set up the abomination of desolation.
By smooth words he will turn to godlessness those who act wickedly toward the covenant, but the people who know their God will display strength and take action.
Those who have insight among the people will give understanding to the many; yet they will fall by sword and by flame, by captivity and by plunder for many days.
Now when they fall they will be granted a little help and may will join with them in hypocrisy.
Some of those who have insight will fall in order to refine, purge and make them pure until the end time; because it is still to come at the appointed time.
NASB translation