There will be great trouble during those days, such as had never been from the beginning of God’s creation until the present, or even will be [in the days to come].
There will be great trouble [during these times], such as had never been from the beginning of time up to the present, or ever will be [in the days to come].
And if the Lord had not kept those days as short as they were, no one would have been saved [i.e., from the devastating destruction]. But for the sake of the elect [i.e., God’s people], whom He chose, He kept those days short.
And I answered him, “Sir, [surely] you know.” And he said to me, “These are the people who have come through the terrible persecution, and they have washed their robes and made them white with the blood of the Lamb.