44. Further, if we inquire more carefully what is meant by "outside," especially as he himself makes mention of the rock on which the Church is built, are not they in the Church who are on the rock, and they who are not on the rock, not in the Church either? Now, therefore, let us see whether they build their house upon a rock who hear the words of Christ and do them not. The Lord Himself declares the contrary, saying, "Whosoever heareth these sayings of mine, and doeth them, I will liken him unto a wise man, which built his house upon a rock;" and a little later, "Every one that heareth these sayings of mine, and doeth them not, shall be likened unto a foolish man, which built his house upon the sand."[469] If, therefore, the Church is on a rock, those who are on the sand, because they are outside the rock, are necessarily outside the Church. Let us recollect, therefore, how many Cyprian mentions as placed within who build upon the sand, that is, who hear the words of Christ and do them not. And therefore, because they are on the sand, they are proved to be outside the rock, that is, outside the Church; yet even while they are so situated, and are either not yet or never changed for the better, not only do they baptize and are baptized, but the baptism which they have remains valid in them though they are destined to damnation. 45. Neither can it be said in this place,[470] Yet who is there that doeth all the words of the Lord which are written in the evangelic sermon itself, at the end of which He says, that he who heard the said words and did them built upon a rock, and he who heard them and did them not built upon the sand? For, granting that by certain persons all the words are not accomplished, yet in the same sermon He has appointed the remedy, saying, "Forgive, and ye shall be forgiven."[471] And after the Lord's prayer had been recorded in detail in the same sermon, He says, "For I say unto you, if ye forgive men their trespasses, your heavenly Father will also forgive you: but if ye forgive not men their trespasses, neither will your Father forgive your trespasses."[472] Hence also Peter says, "For charity shall cover the multitude of sins;"[473] which charity they certainly did not have, and on this account they built upon the sand, of whom the same Cyprian says, that within the Church they held conversation, even in the time of the apostles, in unkindly hatred alien from Christian charity;[474] and therefore they seemed indeed to be within, but really were without, because they were not on that rock by which the Church is signified. * * * * *