Nicolas in Fausset's Bible Dictionary

Of the seven. Probably having no connection with the Nicolaitans, though Epiphanius (adv. Haer. i. 2, section 25) represents him as sinking into corrupt doctrine and practice. Clemens Alex. (Strom. iii. 4) says that Nicolas, when reproached by the apostles with jealousy, offered his wife to any to marry, but that Nicolas lived a pure life and used to quote Matthias' saying, "we ought to abuse (i.e. mortify) the flesh." No church honours Nicolas, but neither do they honor four others of the seven men. Confounders of Nicolas with the Nicolaitans probably originated these legends.