Boethius: De Trinitate, 4

nostrum nunc,
quasi currens, tempus facit et sempiternum,
divinum vero NUNC ,
permanens neque movens sese atque consistens, aeternitatem facit

our present,
as though running along, creates time
whereas the Divine P R E S E N T creates eternity

If we distinguish nunc, our present instant
from NUNC God's PRESENT INTERVAL,
eternity no longer seems to be necessarily timeless.

for an explanation of the significance of the colours