In the following passages we see God describing a time of great trouble such as never was before for Israel. In both cases, God also promises deliverance.
And at that time shall Michael stand up, the great prince which standeth for the children of thy people: and there shall be a time of trouble, such as never was since there was a nation even to that same time: and at that time thy people shall be delivered, every one that shall be found written in the book. (Daniel 12:1)
Alas! for that day is great, so that none is like it: it is even the time of Jacob’s trouble; but he shall be saved out of it. For it shall come to pass in that day, saith the LORD of hosts, that I will break his yoke from off thy neck, and will burst thy bonds, and strangers shall no more serve themselves of him: But they shall serve the LORD their God, and David their king, whom I will raise up unto them. Therefore fear thou not, O my servant Jacob, saith the LORD; neither be dismayed, O Israel: for, lo, I will save thee from afar, and thy seed from the land of their captivity; and Jacob shall return, and shall be in rest, and be quiet, and none shall make him afraid. For I am with thee, saith the LORD, to save thee: though I make a full end of all nations whither I have scattered thee, yet will I not make a full end of thee: but I will correct thee in measure, and will not leave thee altogether unpunished. (Jeremiah 30:7-11)
We also see God’s perspective in these verses:
And they overcame him by the blood of the Lamb, and by the word of their testimony; and they loved not their lives unto the death. (Revelation 12:11)
And I saw as it were a sea of glass mingled with fire: and them that had gotten the victory over the beast, and over his image, and over his mark, and over the number of his name, stand on the sea of glass, having the harps of God. (Revelation 15:2)