1 Chronicles 19:8

David heard about this and sent Joab out with the entire army of fighting men.

2 Samuel 23:8-39

These are the names of David's warriors: Ishbosheth son of Hachmon was the leader of the Three Warriors. In one battle, he killed eight hundred men with his spear.

1 Chronicles 11:6

David said: Whoever attacks the Jebusites first shall be chief and captain. Joab the son of Zeruiah went up first, and became chief.

1 Chronicles 11:10-47

These were the men in charge of David's mighty men. They strengthened themselves with him in his kingdom, with all Israel, to make him king, according to the word of Jehovah concerning Israel.

Treasury of Scripture Knowledge

Summary

And when David heard of it, he sent Joab, and all the host of the mighty men.

Bible References

Joab

1 Chronicles 11:6
David said: Whoever attacks the Jebusites first shall be chief and captain. Joab the son of Zeruiah went up first, and became chief.
2 Samuel 23:8
These are the names of David's warriors: Ishbosheth son of Hachmon was the leader of the Three Warriors. In one battle, he killed eight hundred men with his spear.