Recite constantly the word of God. Put up with fatigue and “be grateful for everything” (1 Th 5:18). Shun the praise of men and love the one who, in the fear of the Lord, reprimands you. Let every man be profitable to you so that you may be good to everyone. Persevere in your work, and in language be above reproach. Do not take one step forward, then a step backward, that God may not detest you; for the crown shall go to the one who perseveres (c.f. Mt. 10:22). Be ever more obedient to God and He will save you.
[St. Pachomius the Great, Instruction Concerning a Spiteful Monk (Pach. Instr. 1), 14]