Thou therefore which teachest another, teachest thou not thyself? thou that preachest a man should not steal, dost thou steal?
Ver. 21. Teachest thou not thyself?] He that knows well and does worse is but as a whiner which carrieth a torch in his hand to show others his own deformities. I have read of a woman, who living in professed doubt of the Godhead, after better illumination and repentance, did often protest that the vicious life of a great scholar in that town did conjure up those damnable doubts in her soul. Neronis illud (quautus artifex pereo?) quadrabit in te peritum et periturum. That is the best sermon that is digged out of a man's own breast. Origen's teaching and living were said to be both one. Eusebius said that he preached not by his words only, but by his practice; and that thereby he had almost persuaded Alexander Severus the emperor to be a Christian; his mother Mammaea he fully persuaded. But Ferdinand I, emperor, complained of some divines that they were in sua ipsorum vitia fecundi satis, bitter against those vices in others which they too much favoured in themselves. a
a Non verbis solum sed exemplis Grammatici de Ulisis erroribus disserentes suos non vident. Bern.