"These six things the Lord hates, yes, seven are an abomination to Him..... one who sows discord among the brethren." 

  "The next consideration regarding vain, and trifling speech is contention; by that I mean, wrangling and perpetual talk proceeding from the spirit of contradiction; a person who is peevish, angry, and has a quarreling disposition, they examine every issue to dispute and busy themselves, and others, with questions and impertinent oppositions.  They are troublesome and they complicate, tangle and twist all wise discourse and throw a cloud upon the face of truth; there is noise but no harmony, fighting but no victory, talking but no learning. They will put every man to flight defending their own position, disturbing the 'rest of truth' and all the dwellings of unity and consent. We can be sure that no person that is clamorous can be wise. They are, in short, "the accuser of the brethren" like the devil; and it is a vile thing for a person to be a tale bearer and sow discord among the brethren: one of the seven things God loudly proclaims He hates." 

Jeremy Taylor. 1600s.