The heavenly city is of pure gold, as pure as glass (Rev 21:18). Blessed are those who wash their robes, that they may go through the gates into the city (Rev 22:14). Gold represents the glory of heaven.

Though your sins are like scarlet, they shall be as white as snow (Isaiah 1:18)
The pattern of prayer: Wash me, and I shall be whiter than snow. (Psalm 51:7)
White represents a pure heart

Border: V. E. Scrolls “Sin. Salvation. Purity. Glory.” Cat. 3088 Published by Religious Tract Society, Hankow & Shanghai

Without the shedding of blood there is no forgiveness of sins (Hebrews 9:22) In him we have redemption through his blood, the forgiveness of sins (Eph. 1:7)

Red represents the precious blood of Jesus

The Lord says the heart is deceitful above all things and beyond cure. Who can understand it? I, Jehovah, search the heart and examine the mind (Jeremiah 17:9)

Black represents sin

Border: V. E. Scrolls “Sin. Salvation. Purity. Glory.” Cat. 3088
Published by Religious Tract Society, Hankow & Shanghai