Didache

Then shall the creation of mankind come to the fiery trial and many shall be offended and be lost, but they who endure in their faith shall be saved by the curse itself.[*](The meaning is obscure; but there seem to be other traces in early literature of a doctrine that each curse also contained the elements of a counterbalancing power to salvation. There is a valuable and long note on the subject in Rendel Harris’s edition of the Didache.)

And then shall appear the signs of the truth. First the sign spread out in Heaven, then the sign of the sound of the trumpet, and thirdly the resurrection of the dead:

but not of all the dead, but as it was said, The Lord shall come and all his saints with him.

Then shall the world see the Lord coming on the clouds of Heaven.