Do you not realize that a commander and a great man has fallen in Israel this day?

2 Samuel 3:22-39

Later, when David heard about this, he said, “I and my kingdom are forever innocent before the Lord concerning the blood of Abner son of Ner. May his blood fall on the head of Joab and on his whole family! May Joab’s family never be without someone who has a running sore or leprosy or who leans on a crutch or who falls by the sword or who lacks food.”

Then David said to Joab and all the people with him, “Tear your clothes and put on sackcloth and walk in mourning in front of Abner.” King David himself walked behind the bier. They buried Abner in Hebron, and the king wept aloud at Abner’s tomb. All the people wept also.

All the people took note and were pleased; indeed, everything the king did pleased them. So on that day all the people there and all Israel knew that the king had no part in the murder of Abner son of Ner.

Then the king said to his men, “Do you not realize that a commander and a great man has fallen in Israel this day? And today, though I am the anointed king, I am weak, and these sons of Zeruiah are too strong for me. May the Lord repay the evildoer according to his evil deeds!”

Why?

David planned to let Abner be the commander of Israel, but he was killed by the evildoer, Joan's family.

David was sad that the death of Abner was real, so all the people there and all of Israel were pleased and knew that the king had no part in the murder of Abner.

Joab used a trick to kill Abner, Joab's brother died in the battle, which is normal.

David became a new king and pleased all the people in Israel. This is the real good king.

How?

Joab is avenging private revenge, This is unfair and mean behavior. May my heart walk on the way of righteousness and love