Adam Clarke on Exodus 13:19

Moses took the bones of Joseph - See Clarke's note on Gen 50:25. It is supposed that the Israelites carried with them the bones or remains of all the twelve sons of Jacob, each tribe taking care of the bones of its own patriarch, while Moses took care of the bones of Joseph. St. Stephen expressly says, Act 7:15, Act 7:16, that not only Jacob, but the fathers were carried from Egypt into Sychem; and this, as Calmet remarks, was the only opportunity that seems to have presented itself for doing this: and certainly the reason that rendered it proper to remove the bones of Joseph to the promised land, had equal weight in reference to those of the other patriarchs. See Clarke's note on Gen 49:29.