Clement of Alexandria Stromata Book V "Wherefore also go forth from the midst of them, and be separated, saith the Lord, and touch not the unclean thing; and I will receive you, and will be to you for a Father, and ye shall be my sons and daughters."[109] Tertullian Against Marcion Book V Again, "Go ye out from the midst of them; touch not the unclean thing; separate yourselves, ye that bear the vessels of the Lord."[830] Tertullian On Modesty If you think this said about a heathen, at all events about believers you have already heard (it said) through Isaiah: "Go out from the midst of them, and be separate, and touch not the impure."[213] Constitutions of the Holy Apostles Book VI And again: "Depart from the midst of them, and separate yourselves, says the Lord, and touch not the unclean thing, and I will receive you."[26]