οὐ γὰρ πράξιν ἀγαθὴν, ἀλλὰ καὶ εὖ ποεῖν αὐτὴν → it does not suffice to do good–one must do it well
contracted from אָמַן; stability; (figuratively) certainty, truth, trustworthiness: assured(-ly), establishment, faithful, right, sure, true (-ly, -th), verity.
