Shmuel Bais 14:19

19 And HaMelech said, Is not the yad Yoav with thee in all this? And the isha answered and said, As thy nefesh liveth, adoni HaMelech, none can turn to the right or to the left from anything that adoni HaMelech hath spoken; for thy eved Yoav, he instructed me, and he put all these devarim in the peh (mouth) of thine shifchah (handmaid);

Shmuel Bais 14:19 Meaning and Commentary

2 Samuel 14:19

And the king said, [is not] the hand of Joab with thee in all
this?
&c.] That is, is not this done by the advice, assistance, and direction of Joab? did not he form this scheme for thee, and direct thee to this method, and put thee upon prosecuting it?

and the woman answered and said, [as] thy soul liveth, my lord the
king;
what I am about to say is as sure as thou art alive; though this may be only a wish that he might long live and be happy; nothing is more desirable than thy valuable life:

none can turn to the right hand or the left from ought that my lord the
king hath spoken;
he has hit upon the truth of the matter; there is no dissimulation or prevarication to be used; the thing cannot be denied; for thy servant Joab he bade me, and put all these words in the mouth of thine handmaid: he sent for me, and laid his commands on me, and directed me what to say to the king, and how to conduct this affair.

Shmuel Bais 14:19 In-Context

17 Then thine shifchah said, The devar adoni HaMelech shall now be as menuchah (rest, comfort); for as a malach HaElohim, so is adoni HaMelech to discern the tov and the rah; therefore Hashem Eloheicha will be with thee.

18 Then HaMelech answered and said unto the isha, Hide not from me, now, the thing that I shall ask thee. And the isha said, Let adoni HaMelech now speak.

19 And HaMelech said, Is not the yad Yoav with thee in all this? And the isha answered and said, As thy nefesh liveth, adoni HaMelech, none can turn to the right or to the left from anything that adoni HaMelech hath spoken; for thy eved Yoav, he instructed me, and he put all these devarim in the peh (mouth) of thine shifchah (handmaid);

20 To bring about this matter for discussion hath thy eved Yoav done this thing; and adoni is chacham, according to the chochmat malach HaElohim, to know all things that are in ha’aretz.

21 And HaMelech said unto Yoav, Hinei now, I have granted this thing; go therefore, bring the na’ar Avshalom back!