2 Samuel 18:22

Then said Ahimaaz, the son of Zadok, yet again to Joab, but, howsoever, no matter what may happen, let me, I pray thee, also run after Cushi. He was anxious to convey what he thought was excellent news to David. And Joab, still unwilling to let the young man incur the anger of David, said, Wherefore wilt thou run, my son, seeing that thou hast no tidings ready? His message would not be profitable, since the king was bound to consider it bad, from his standpoint, and would therefore look upon him as a messenger of evil.