Targum zu Bamidbar 21:27

Therefore, say the young men, (or the chosen ones,) using proverbs: The righteous who rule their passions say, Come let us reckon (Heshbon) the strength of a good work by the recompense, and the recompense of an evil work by the strength for whoso is watchful and diligent in the law is builded up and perfected;

Therefore say they who speak in proverbs, Ascend.