The apostle John declared that God's righteous people who were living when Christ returned to earth would be those “which came out of great tribulation, and have washed their robes (characters), and made them white in the blood of the Lamb.” Revelation 7:14.
Ipinahayag ni apostol Juan na ang mga banal na anak ng Dios na nabubuhay pagbalik ni Cristo sa lupa ay yaong mga "nanggaling sa malaking kapighatian, at nangaghugas ng kanilang mga damit (pag-uugali), at pinaputi sa dugo ng Cordero." Apokalipsis 7:14.