Isaiah 1:18 (NIV)

“Come now, let us settle the matter,”
says the Lord.

“Though your sins are like scarlet,
they shall be as white as snow;
though they are red as crimson,
they shall be like wool.

Detail of the Crucifixion from Isenheim altarpiece; detail of a lamb, c.1512-16
Matthias Grünewald (German, 1470-1528)