End Days / More Evil than any other time in history

What did Jesus mean when He said, 'the tribulation of the last day will be more evil than any other time in the history of the world. '. ??

The Tribulation of those days.....

Present Evil Age....

Culture of Death....

Who ever causes one of these little ones to stumble, it should be better for him to have a millstone tied around his neck and to be cast into the depths of the sea....