John Chrysostom

"But avoid foolish questions, and genealogies, and contentions, and strivings about the law, for they are unprofitable and vain." What do these "genealogies" mean? For in his Epistle to Timothy he mentions "fables and endless genealogies." (1 Tim. i. 4.) Perhaps both here and there glancing at the Jews, who, priding themselves on having Abraham for their forefather, neglected their own part. On this account he calls them both "foolish and unprofitable"; for it is the part of folly to confide in things unprofitable. "Contentions," he means, with heretics, in which he would not have us labor to no purpose, where nothing is to be gained, for they end in nothing. For when a man is perverted and predetermined not to change his mind, whatever may happen, why shouldest thou labor in vain, sowing upon a rock, when thou shouldest spend thy honorable toil upon thy own people, in discoursing with them upon almsgiving and every other virtue?