But now, having known God, or rather, having been known by God, how is it that you turn again to the weak and beggarly elements, to which once again you wish to be slaves?
See that you do not refuse Him who speaks. For if they did not escape, having refused Him who warned them, how much more shall we not escape if we turn away from Him who warns from heaven;
But it has happened to them according to the saying of the true proverb: "A dog returns to his own vomit," and, "A sow, having washed, to her wallowing in the mire."