Bede the Venerable
Catena Aurea · Lukasevangelium 9
And it came to pass about an eight days after these sayings, he took Peter and John and James, and went up into a mountain to pray. And as he prayed, the fashion of his countenance was altered, and his raiment was white and glistering. And, behold, there talked with him two men, which were Moses and Elias: Who appeared in glory, and spake of his decease which he should accomplish at Jerusalem.
For as He rose from the dead after the seventh day of the Sabbath, during which He lay in the tomb, we also after the six ages of this world, and the seventh of the rest of souls, which meanwhile is passed in another life, shall rise again as it were in the eighth age.