Catholic Commentary on Exodus 13

"By day the LORD went ahead of them in a pillar of cloud to guide their way, and by night in a pillar of fire to give them light." (Exodus 13:21)

The Consecration of the Firstborn and the Cloud

After the tenth plague, every firstborn in Israel is consecrated to the LORD: in the future when your son asks you what this means, tell him about what the LORD did for us when we came out of Egypt. The redemption of the firstborn son is the ongoing commemoration of the night when God passed over the Israelite houses and struck the Egyptian firstborn. The Catechism sees in this consecration of the firstborn a foreshadowing of the consecration of Christ, the eternal firstborn Son, who is the fulfilment of every Israelite firstborn redeemed at the Exodus (CCC 529).

God leads the people the longer way through the desert rather than the shorter coastal route, because if they face war they might change their minds and return to Egypt. Moses takes the bones of Joseph with him, as Joseph had made the Israelites swear to do. They leave Egypt. By day the LORD went ahead of them in a pillar of cloud to guide their way, and by night in a pillar of fire to give them light, so that they could travel by day or night. Neither the cloud nor the pillar of fire left its place in front of the people. God does not lead from behind. He goes ahead. The presence that guided is the same presence that guards: day and night, movement and rest, every direction of the journey.

Living the Word

Brothers and sisters, the pillar of cloud by day and fire by night is the visible presence of God with his people on the road. The Church receives Christ's continued guidance through the Scripture, the sacraments, and the living Tradition: the pillar of his presence that does not leave its place in front of his people. However dark or unfamiliar the terrain, the cloud has not moved. Follow it.

Prayer

Lord God, you went ahead of your people in a pillar of cloud and fire that never left them. Go ahead of us. Guide us in the longer way that avoids the battles we are not yet ready for. And let your presence be as visible to us as the pillar was to Israel, day and night. Through Christ our Lord. Amen.

13
The Dedication of the Firstborn
(Deuteronomy 15:19–23)
Then the LORD said to Moses, “Consecrate to Me every firstborn male.* 13:2 Cited in Luke 2:23 The firstborn from every womb among the Israelites belongs to Me, both of man and beast.”
 
So Moses told the people, “Remember this day, the day you came out of Egypt, out of the house of slavery; for the LORD brought you out of it by the strength of His hand. And nothing leavened shall be eaten.
 
Today, in the month of Abib, 13:4 Abib was the first month of the ancient Hebrew lunar calendar, usually occurring within the months of March and April. you are leaving. And when the LORD brings you into the land of the Canaanites, Hittites, Amorites, Hivites, and Jebusites—the land He swore to your fathers that He would give you, a land flowing with milk and honey—you shall keep this service in this month.
 
For seven days you are to eat unleavened bread, and on the seventh day there shall be a feast to the LORD. Unleavened bread shall be eaten during those seven days. Nothing leavened may be found among you, nor shall leaven be found anywhere within your borders.
 
And on that day you are to explain to your son, ‘This is because of what the LORD did for me when I came out of Egypt.’ It shall be a sign for you on your hand and a reminder on your forehead that the Law of the LORD is to be on your lips. For with a mighty hand the LORD brought you out of Egypt. 10 Therefore you shall keep this statute at the appointed time year after year.
 
11 And after the LORD brings you into the land of the Canaanites and gives it to you, as He swore to you and your fathers, 12 you are to present to the LORD the firstborn male of every womb. All the firstborn males of your livestock belong to the LORD. 13 You must redeem every firstborn donkey with a lamb, and if you do not redeem it, you are to break its neck. And every firstborn of your sons you must redeem.
 
14 In the future, when your son asks you, ‘What does this mean?’ you are to tell him, ‘With a mighty hand the LORD brought us out of Egypt, out of the house of slavery. 15 And when Pharaoh stubbornly refused to let us go, the LORD killed every firstborn in the land of Egypt, both of man and beast. This is why I sacrifice to the LORD the firstborn male of every womb, but I redeem all the firstborn of my sons.’ 16 So it shall serve as a sign on your hand and a symbol on your forehead, for with a mighty hand the LORD brought us out of Egypt.”
The Pillars of Cloud and Fire
 
17 When Pharaoh let the people go, God did not lead them along the road through the land of the Philistines, though it was shorter. For God said, “If the people face war, they might change their minds and return to Egypt.” 18 So God led the people around by the way of the wilderness toward the Red Sea. 13:18 Or the Sea of Reeds And the Israelites left the land of Egypt arrayed for battle.§ 13:18 LXX left the land of Egypt in the fifth generation
 
19 Moses took the bones of Joseph with him because Joseph had made the sons of Israel swear a solemn oath when he said, “God will surely attend to you, and then you must carry my bones with you from this place.”* 13:19 Genesis 50:25
 
20 They set out from Succoth and camped at Etham on the edge of the wilderness. 21 And the LORD went before them in a pillar of cloud to guide their way by day, and in a pillar of fire to give them light by night, so that they could travel by day or night. 22 Neither the pillar of cloud by day nor the pillar of fire by night left its place before the people.

*13:2 13:2 Cited in Luke 2:23

13:4 13:4 Abib was the first month of the ancient Hebrew lunar calendar, usually occurring within the months of March and April.

13:18 13:18 Or the Sea of Reeds

§13:18 13:18 LXX left the land of Egypt in the fifth generation

*13:19 13:19 Genesis 50:25