If they [the Hebrew Christians] are not diligent in this respect they will become slothful ([Heb 6:11-]12). It is always one or the other, diligence or decadence. When a congregation has lost the glory and the fire, it will soon lose the truth and the way.
-- Richard S. Taylor, "The Epistle to the Hebrews,"
in Beacon Bible Commentary, vol. 10: 75-76.