29 Traditionally, “great tribulation.”
30 Suffering unlike anything that has happened. Some refer this event to the destruction of Jerusalem in a.d. 70. While the events of a.d. 70 may reflect somewhat the comments Jesus makes here, the reference to the scope and severity of this judgment strongly suggest that much more is in view. Most likely Jesus is referring to the great end-time judgment on Jerusalem in the great tribulation.

In other versions

For then there will be great tribulation, such as has not been from the beginning of the world until now, no, and never will be.

For then there will be great distress, unequaled from the beginning of the world until now—and never to be equaled again.

For at that time there will be great distress, the kind that hasn’t taken place from the beginning of the world until now and never will again.

For there will be greater anguish than at any time since the world began. And it will never be so great again.

For at that time there will be great tribulation, such as has not happened from the beginning of the world until now, nor ever will happen.

For then shall be great tribulation, such as was not since the beginning of the world to this time, no, nor ever shall be.

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