2 Samuel 14:11 (BSB)

“Please,” she replied, “may the king invoke the LORD your God to prevent the avenger of blood from increasing the devastation, so that my son may not be destroyed!” “As surely as the LORD lives,” he vowed, “not a hair of your son’s head will fall to the ground.”

From 2 Samuel 14. Also in the ESV.

Commentary on 2 Samuel 14:11

• Matthew Henry (Presbyterian), Matthew Henry's Complete Commentary on 2 Samuel 14:1-20: Here is, I. Joab's design to get Absalom recalled out of banishment, his crime pardoned, and his attainder reversed, Sa2 14:1. Joab made himself very busy in this affair. 1. As a courtier that was studious, by all ways possible, to ingratiate himself with his prince and improve his interest in his favour: He perceived that the king's heart was towards Absalom, and that, the...
• John Gill (Reformed Baptist), Exposition of the Old and New Testaments on 2 Samuel 14:11: Then said she, I pray thee, let the king remember the Lord thy God,.... Who is a God gracious and merciful, and imitate him in showing mercy to the distressed; pitying their case, having compassion upon them, and relieving them, as she hoped he would commiserate her case, and provide for the safety of her son.
• Geneva Bible Notes (Reformed), Geneva Bible Study Notes on 2 Samuel 14:11: Then said she, I pray thee, let the king remember the LORD thy God, that thou wouldest not suffer the revengers of blood to destroy any more, lest they destroy my son. And he said, [As] the LORD liveth, there shall not one hair of thy son fall to the earth. (f) Swear that they will not revenge the blood, which are many in number.
• Adam Clarke (Methodist), Clarke's Commentary on the Bible on 2 Samuel 14:11: Let the king remember the Lord thy God - Consider that when God is earnestly requested to show mercy, he does it in the promptest manner; he does not wait till the case is hopeless: the danger to which my son is exposed is imminent; if the king do not decide the business instantly, it may be too late.