2 Samuel 3:32-36

And they buried Abner in Hebron; and the king raised his voice and wept at the grave of Abner, and all the people wept.

And the king sang a song of mourning for Abner and said, “Should Abner die as a fool dies?

“Your hands were not bound, nor your feet put in bronze shackles; As one falls before the wicked, you have fallen.” And all the people wept over him again.

Then all the people came to provide food for David in his distress while it was still day; but David vowed, saying, “May God do so to me, and more so, if I taste bread or anything else before the sun goes down.”

Now all the people took note of David’s vow, and it pleased them, just as everything that the king did pleased all the people.