When He died for our sins, He died for our sinful natures as well. The flesh has been judged. Circumcision is practiced by applying the knife of the word of God to our flesh, the sinful nature. It logically follows the Jordan River in the spiritual picture and in our experience. Elaborate, using your life as an example.
Circumcision is painful.
Putting the word of God to the flesh can be painful, but it must be done. Only then can we move on to conquer the Jerichos. The nation of Israel was scared before the enemy. It was not of Israel's doing, but the Lord turned the heart of the enemy. The Lord said to Joshua, ' This day I have rolled away the reproach of Egypt from you.