Treasury of Scripture Knowledge
Thou hast a few names even in Sardis which have not defiled their garments; and they shall walk with me in white: for they are worthy.
And at that hour there was a great earthquake, and a tenth of the city fell; seven thousand people were killed in the earthquake, and the rest were terrified and gave glory to the God of heaven.
But what is God's reply to him? "I have reserved for myself seven thousand men who have not bowed the knee to Baal."
He who overcomes shall be clothed in white garments, and I will not blot out his name from the Book of Life; but I will confess his name before my Father and before his angels.
Round the throne were twenty-four thrones, and seated on the thrones were twenty-four elders, clothed in white garments, and golden crowns on their heads.
Then each of them were given a white robe, and they were told to rest a little longer, until the number of their fellow servants and their brethren should be completed, who were to be killed as they had been.
After this I looked, and behold, a great multitude which no one could count, from every nation and all tribes and peoples and tongues, standing before the throne and before the Lamb, clothed in white robes, and palm branches were in their hands;
The armies of heaven were following him, riding on white horses, and dressed in fine linen, white and clean.
And entering the tomb, they saw a young man sitting on the right side, dressed in a white robe; and they were alarmed.
Now whatever village or town you enter, inquire who in it is worthy, and stay there until you go out.
But those who are considered worthy to attain that age and the resurrection from the dead neither marry nor are given in marriage,
Watch at all times, and pray always that you may have strength to escape all these things that will take place, and to stand before the Son of Man."
2 Thessalonians 1:5
This is evidence of God's righteous judgment, so that you will be considered worthy of the kingdom of God, for which indeed you are suffering.