The first reading this week, 2 Kings 2:1-12 depicts the departure of Elijah. John H. Hayes, in Preaching through the Christian Year B, suggests reading Exodus 24 and 34 to see how Mark's version of the Transfiguration is patterned on Moses' experiences of God on Mt. Sinai.
All the elements of Mark's account are there: the six days of waiting, the cloud, the glory, the voice, the descent from the mountain. Moses' face shone due to his experience in the presence of God. Exodus also describes the making of the tent of meeting.
Lectio Divina: Mark 9:6