The "reproach of Egypt" being rolled away has a typical application to Christians. They are heavenly men, and it is a reproach to such that the ways of Egypt (man in nature and under Satan's power), out of which they have been taken by redemption, should be seen in them. In Jordan (typically considered) we have our being dead and risen with Christ, and introduced into heavenly places in Him. Circumcision then followed (Josh. 5); it never was done in the wilderness. There we may walk in grace and faithfulness, but the moment we are "heavenly," another thing comes in. Thus it should be plainly seen that we are dead and risen with Christ, and that we bear the marks of our heavenly citizenship, every trace of Egyptian bondage having been rolled away.
Suppose you see one who is a Christian running after the world, and the fashions and follies of the town. Well, you say, you may be dead and risen with Christ, but you had better go to Gilgal and have that reproach to His name rolled away by the practical putting to death of your members.