1 Chronicles 21:6

Because Joab disapproved of the king's command, he did not take any census of the tribes of Levi and Benjamin.

Numbers 1:47-49

The households from the tribe of Levi were not registered along with the other Israelites.

2 Samuel 3:27

Abner arrived in Hebron. Joab took him aside at the gate, as though he wanted to speak privately with him. There he stabbed him in the stomach. So Abner was murdered because he had killed Joab's brother Asahel.

2 Samuel 11:15-21

The letter said: Put Uriah on the front line where the fighting is the worst. Pull the troops back from him, so that he will be wounded and die.

2 Samuel 20:9-10

How are you, my brother? Joab asked Amasa. He took hold of Amasa's beard with his right hand to kiss him.

1 Chronicles 27:24

Joab, son of Zeruiah, started to count them but did not finish. God was angry with Israel because of this, and the report from it was never included in the official records of King David.

Treasury of Scripture Knowledge

Summary

But Levi and Benjamin counted he not among them: for the king's word was abominable to Joab.

General references

Bible References

Levi

Numbers 1:47
The households from the tribe of Levi were not registered along with the other Israelites.

Joab

2 Samuel 3:27
Abner arrived in Hebron. Joab took him aside at the gate, as though he wanted to speak privately with him. There he stabbed him in the stomach. So Abner was murdered because he had killed Joab's brother Asahel.
2 Samuel 11:15
The letter said: Put Uriah on the front line where the fighting is the worst. Pull the troops back from him, so that he will be wounded and die.
2 Samuel 20:9
How are you, my brother? Joab asked Amasa. He took hold of Amasa's beard with his right hand to kiss him.

General references

Numbers 1:47
The households from the tribe of Levi were not registered along with the other Israelites.