And he was there with the LORD forty days and forty nights; he did neither eat bread, nor drink water. And he wrote upon the tables the words of the covenant, the ten commandments.
Read Chapter 34
Augustine of Hippo
The fortyday fast of Lent draws its authority from the Old Testament, from the fasts of Moses and Elijah, and from the gospel, because the Lord fasted that many days, showing that the gospel is not at variance with the Law and the Prophets. The Law is personified by Moses, the Prophets by Elijah, between whom the Lord appeared transfigured on the mountain.
Every soul is beautiful which is considered by the standard of its own virtues. But most beautiful, true and lovely, which can be contemplated by him alone who has purified his mind, is that of the divine and blessed nature. He who gazes steadfastly at the splendor and graces of it receives some share from it, as if from an immersion, tinging his own face with a sort of brilliant radiance. Whence Moses also was made resplendent in face by receiving some share of beauty when he held converse with God. Therefore he who is conscious of his own beauty utters this act of thanksgiving: “O Lord, in your favor, you gave strength to my beauty.”