2 Samuel 14:21

Then the king said to Joab, “Listen, I will most certainly do this thing; now go, bring back the young man Absalom.”

2 Samuel 14:11

Then she said, “Please let the king remember the Lord your God, so that the avenger of blood will not continue to destroy, otherwise they will destroy my son.” And David said, “As the Lord lives, not a single hair [from the head] of your son shall fall to the ground.”

1 Samuel 14:39

For as the Lord lives, who saves Israel, for even if the guilt is in my son Jonathan, he shall most certainly die.” But not one of all the people answered him.

Mark 6:26

The king was deeply grieved, but because of his oaths and his dinner guests [who might have regarded him as weak], he was unwilling to [break his word and] refuse her.

Treasury of Scripture Knowledge

Summary

And the king said unto Joab, Behold now, I have done this thing: go therefore, bring the young man Absalom again.

Bible References

I have done

2 Samuel 14:11
Then she said, “Please let the king remember the Lord your God, so that the avenger of blood will not continue to destroy, otherwise they will destroy my son.” And David said, “As the Lord lives, not a single hair [from the head] of your son shall fall to the ground.”
1 Samuel 14:39
For as the Lord lives, who saves Israel, for even if the guilt is in my son Jonathan, he shall most certainly die.” But not one of all the people answered him.
Mark 6:26
The king was deeply grieved, but because of his oaths and his dinner guests [who might have regarded him as weak], he was unwilling to [break his word and] refuse her.