Since it is likely that, being men, they would sin every day, St. Paul consoles his hearers by saying 'renew yourselves' from day to day. This is what we do with houses: we keep constantly repairing them as they wear old. You should do the same thing to yourself. Have you sinned today? Have you made your soul old? Do not despair, do not despond, but renew your soul by repentance, and tears, and Confession, and by doing good things. And never cease doing this.
Saint John Chrysostom"He passed over his fall, and appointed him first of the Apostles; wherefore He said: ' 'Simon, Simon,' etc. (in Ps. cxxix. 2). God allowed him to fall, because He meant to make him ruler over the whole world, that, remembering his own fall, he might forgive those who should slip in the future. And that what I have said is no guess, listen to Christ Himself saying: 'Simon, Simon, etc.'"
Saint John ChrysostomLet no one mourn that he has fallen again and again; for forgiveness has risen from the grave.
Saint John ChrysostomBe ashamed when you sin, don't be ashamed when you repent [To repent means to have a change of heart and mind. It is not simply a feeling of sorrow ,but a psycho/spiritual growth away from evil/death and a turning to God/life]. Sin is the wound, repentance is the medicine. Sin is followed by shame; repentance is followed by boldness [ Boldness means to beg God for undeserved mercy]. Satan has overturned this order and given boldness to sin and shame to repentance.
Saint John ChrysostomNo one has ever been accused for not providing ornaments, but for those who neglect their neighbour a hell awaits with an inextinguishable fire and torment in the company of the demons. Do not, therefore, adorn the church and ignore your afflicted brother, for he is the most precious temple of all.
Saint John Chrysostom