2 Samuel 17:7

And Hushai said to Absalom
Having leave to give his opinion freely:

the counsel that Ahithophel hath given [is] not good at this time;
he owns that Ahithophel was a good counsellor, and that the counsel he gave was for the most part, if not always, good, but what he gave at this time was not so; the wisest of men may sometimes be mistaken. Abarbinel thinks he respects his former counsel, particularly that that was good, advising him to defile his father's bed, ( 2 Samuel 16:21 ) ; but this was not, for which he gives the following reasons.