Bg 4.16

kiṁ karma kim akarmeti
kavayo ’py atra mohitāḥ
tat te karma pravakṣyāmi
yaj jñātvā mokṣyase ’śubhāt

Synonyms: 

kim — what is; karma — action; kim — what is; akarma — inaction; iti — thus; kavayaḥ — the intelligent; api — also; atra — in this matter; mohitāḥ — are bewildered; tat — that; te — unto you; karma — work; pravakṣyāmi — I shall explain; yat — which; jñātvā — knowing; mokṣyase — you will be liberated; aśubhāt — from ill fortune.

Translation: 

Even the intelligent are bewildered in determining what is action and what is inaction. Now I shall explain to you what action is, knowing which you shall be liberated from all misfortune.

BG 4.16

In BG 9.1 Krishna says same point you will become free from inauspiciousness.

At the end of Mahabharata war Yudhistir was lamenting that many people were killed because of him, so everyone was consoling him, that time rishi-munis said if just by going to forest, karma phala is destroyed then all the animals living in forest would have been liberated. Bhima said at the end now you are fighting war within your mind and you are losing it, when Yudhistir maharaj heard it he started countering it went on and on and no conclusion is made lastly everyone went to Bhisma pitamah, who initially taught various school of thoughts but at the end said most imp things is Lord wanted this battle to happen and you were part of it. Now Lord wanted you to be become king, so try to be part of Lord’s plan. It is difficult to understand Lord’s plan but if we act according to Lord’s plan then all auspiousness will be there. Bhisma Pitamah said I had a difficult service to fight against Lord, who wanted to do that but I did that and see what is the result , see mercy of Krishna, when I am about to leave the body Lord Krishna Himself has come to give me Darshan.

So the point is even the wise get bewildered, here Yudhistir Maharaj got bewildered was one who has answered Dhaksha’s questions.