The washing of the feet, repentance and baptism
He who has been washed has need still to wash his feet…[for] in holy baptism a man has all of him washed, not everything but his feet, but every part. But after living in ths human state, he cannot fail to tread on the ground with his feet, Thus our human feelings themselves, which are inseparable from our mortal life on earth, are like feet with which we come into sensible contact with human affairs…
Therefore, every day He who intercedes for us is washing our feet. We, too have a daily need to be washing our feet, that is ordering aright the path of our spriritual footsteps, we acknowledge even in the Lord's prayer, when we say, "Forgive us our trespasses as we also forgive those who trespass against us." For "If we confess out sins," then truly He who washed His disciples' feet is "faithful and just to forgive us our sings, and to cleanse us from all unrighteousness." (1 John 1:9)
Accordingly the Church, which Christ cleanses with the washing of water in the word, is without spot and wrinkle, not only in the case of those who are taken away immediately after the washing of regeneration from the contagious influence of this life, and tread not the earth so aso to make necessary the washing of their feet, but in those also who have experienced such mercy from the Lord as to be enabled to quit this present life even with feet that have been washed.
But although the Church is also clean in respect of those who tarry on earth, because they live righteously; they still need to be washing their feet, because they assuredly are not without sin. This is why it is said in the Song of Songs, "I have washed my feet; how shall I defile them?" For one so speaks when he is constrained to come to Christ, and in coming has to bring his feet into contact with the ground.