2 Samuel (Author Compiled by Isaiah from records of Samuel, David, Nathan, and Gad.)
3:31And David saith unto Joab, and unto all the people who are with him, `Rend your garments, and gird on sackcloth, and mourn before Abner;' and king David is going after the bier.
Original from The Bible Foundation - bf.org. They claim public domain status for their original text.