Moses, wandering after his self-exile from Egypt, is tending sheep on Mount Horeb (Exodus 3). An angel of the Lord appears to him “in flames of fire from within a bush”. When Moses investigates, God speaks to him: “I am the God of your Father, the God of Abraham, the God of Isaac, and the God of Jacob.” God has heard his people “crying out because of their slave drivers,” and He will rescue them and restore them to a place flowing with milk and honey—and Moses will be the means.
Moses is the redeemer of the early Old Testament. Christ is the redeemer of all.
The Burning Bush Chrismon (second row, far right) and the second verse in “O Come, O Come, Emmanuel” commemorate Moses as a harbinger of Christ the Redeemer who saves us from the slave drivers of sins.
O come, O come, Thou Lord of might / Who to Thy tribes, on Sinai’s height / In ancient times didst give the law (to Moses, with tablets) / In cloud and majesty and awe.
Rejoice! Rejoice! Emmanuel / Shall come to thee, O Israel.