John Gill Commentary Proverbs 18:13

"He that giveth answer before he heareth, It is folly and shame unto him." — Proverbs 18:13 (ASV)

He that answers a matter before he hears [it] Who is impatient, and cannot wait to hear it out, but breaks in upon the speaker before he has finished what he has to say; or is rash and precipitate, and returns an answer at once, without weighing and considering, and thoroughly understanding, what is said: it [is] folly and shame to him ; his answer must be a foolish one, and bring shame and confusion upon him; men should be "swift to hear", and "slow to speak", (James 1:9) .