Better, It is a snare to a man to utter a vow (of consecration) rashly, and after vows to inquire whether he can fulfill them. Both clauses are a protest against the besetting sin of rash and hasty vows. Compare the marginal reference.
Related Commentaries of Proverbs 20:25
Proverbs 20:25
25 It is a snare to the man who devoureth that which is holy, and after vows to make enquiry.