Then they said, “We be not born of fornication.” Yet in fact many of them were born of fornication, for they practiced unbefitting unions. Still He doth not convict them of this, but setteth Himself to the other point. For when He hath proved them to be, not of God, but of the devil, by all these signs, (for to do murder is of the devil, and to lie is of the devil, both which ye do,) then He showeth that to love is the sign of being of God. “Why do ye not understand My speech?” Since they were always doubting, saying, “What is it that he saith, ‘Whither I go ye cannot come’?” therefore He telleth them, “Ye do not understand My speech,” “because ye have not the word of God. And this cometh to you, because that your understanding is groveling, and because what is Mine is far too great for you.” But what if they could not understand? Not to be able here means not to be willing; for “ye have trained yourselves to be mean, to imagine nothing great.” Because they said that they persecuted Him as being themselves zealous for God, on this account He everywhere striveth to show that to persecute Him is the act of those who hate God, but that, on the contrary, to love Him is the act of those who know God.