Proverbs 10:26
vinegar <02558> [vinegar.]
smoke <06227> [as smoke.]
As the acidity of vinegar causes the unpleasantness and pain to the teeth, and by softening and dissolving the alkali of the bone, impairs their texture, and renders them incapable of mastication; and as smoke, by irritating the tender vessels, causes the eyes to smart, and prevents distinct vision; so a sluggish messenger is a continual vexation and loss to those by whom he is employed.
sluggard <06102> [so.]
Proverbs 13:17
unreliable <07563> [wicked.]
faithful <0529> [but.]
faithful envoy <06735 0529> [a faithful ambassador. Heb. an ambassador of faithfulness.]