Philaret of Moscow (Drosdow)
Those who partake of the lamb must first be circumcised. Anyone who is uncircumcised is forbidden to consume it. Ex. 12:49. In a similar manner, the new Passover must undergo a transformation through the circumcision that addresses the sinful nature, as seen in Col. 2:11, which signifies the casting off of the body of sinful flesh. This process eliminates the root of sinful desires, which cannot coexist with the purity required to receive the Divine Lamb into our hearts.