11 "When God brings you into the land of the Canaanites, as he promised you and your fathers, and turns it over to you, 12 you are to set aside the first birth out of every womb to God. Every first birth from your livestock belongs to God. 13 You can redeem every first birth of a donkey if you want to by substituting a lamb; if you decide not to redeem it, you must break its neck. 14 When the time comes and your son asks you, 'What does this mean?' you tell him, 'God brought us out of Egypt, out of a house of slavery, with a powerful hand. 15 When Pharaoh stubbornly refused to let us go, God killed every firstborn in Egypt, the firstborn of both humans and animals. That's why I make a sacrifice for every first male birth from the womb to God and redeem every firstborn son.' 16 The observance functions like a sign on your hands or a symbol on the middle of your forehead: God brought us out of Egypt with a powerful hand."
17 It so happened that after Pharaoh released the people, God didn't lead them by the road through the land of the Philistines, which was the shortest route, for God thought, "If the people encounter war, they'll change their minds and go back to Egypt." 18 So God led the people on the wilderness road, looping around to the Red Sea. The Israelites left Egypt in military formation. 19 Moses took the bones of Joseph with him, for Joseph had made the Israelites solemnly swear to do it, saying, "God will surely hold you accountable, so make sure you bring my bones from here with you." 20 They moved on from Succoth and then camped at Etham at the edge of the wilderness. 21 God went ahead of them in a Pillar of Cloud during the day to guide them on the way, and at night in a Pillar of Fire to give them light; thus they could travel both day and night.
Matthew Henry's Commentary on Exodus 13:11-21
Commentary on Exodus 13:11-16
(Read Exodus 13:11-16)
The firstlings of beast not used in sacrifice, were to be changed for others so used, or they were to be destroyed. Our souls are forfeited to God's justice, and unless ransomed by the sacrifice of Christ, will certainly perish. These institutions would continually remind them of their duty, to love and serve the Lord. In like manner, baptism and the Lord's supper, if explained and attended to, would remind us, and give us occasion to remind one another of our profession and duty.
Commentary on Exodus 13:17-20
(Read Exodus 13:17-20)
There were two ways from Egypt to Canaan. One was only a few days' journey; the other was much further about, through the wilderness, and that was the way in which God chose to lead his people Israel. The Egyptians were to be drowned in the Red sea; the Israelites were to be humbled and proved in the wilderness. God's way is the right way, though it seems about. If we think he leads not his people the nearest way, yet we may be sure he leads them the best way, and so it will appear when we come to our journey's end. The Philistines were powerful enemies; it was needful that the Israelites should be prepared for the wars of Canaan, by passing through the difficulties of the wilderness. Thus God proportions his people's trials to their strength, 1 Corinthians 10:13. They went up in good order. They went up in five in a rank, some; in five bands, so others, which it seems rather to their faith and hope, that God would bring them to Canaan, in expectation of which they carried these bones with them while in the desert.
Commentary on Exodus 13:21-22
(Read Exodus 13:21-22)
The Lord went before them in a pillar, or appearance of the Divine Majesty. Christ was with the church in the wilderness, John 14:6.