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,
11. And it shall be when the Lord shall bring thee. He proceeds with what had been glanced at in the beginning of the chapter with respect to the consecration of the first-born, that in this way they should bear witness to the special blessing of God which preserved them when He destroyed the first-born of the Egyptians. But He commands the animals to Observe A.
The firstborn of clean beasts must be sacrificed, and the unclean redeemed with a lamb or destroyed; whatever is unclean by nature, unredeemed, will be destroyed. Your children are polluted too and must be redeemed by blood, that they may belong to the Church of the Firstborn, just as you were delivered by God's hand from the destroying angel.
AI summary
Commenting on Exodus 13:11-16
And it shall be when the Lord shall bring thee into the land of the Canaanites,.... Put for all the rest of the nations: as he sware unto thee, and to thy fathers, and shall give it thee; to them as they were in their loins, and from thence might certainly conclude it would be given them.