Bede

It is ruin for a man to devour the holy, etc. Since it is a sin to harm any man, how much more so when it is he who has sinned? How forty men in the Acts of the Apostles vowed that they would neither eat nor drink until they had killed Paul; and pagans often, as we read, devoted the blood of Christians to their gods. This verse the ancient edition set in another sense, saying: It is a snare for a man to dedicate something quickly of his own; afterwards, when he has made a vow, he repents. …

Commentary on Proverbs ↗