'Alone' in the Bible

David said to Abishai, and to all his servants, "Behold, my son, who came forth from my bowels, seeks my life. How much more this Benjamite, now? Leave him alone, and let him curse; for Yahweh has invited him.

Now David was sitting between the two gates: and the watchman went up to the roof of the gate to the wall, and lifted up his eyes, and looked, and, behold, a man running alone.

The watchman cried, and told the king. The king said, "If he is alone, there is news in his mouth." He came closer and closer.

The watchman saw another man running; and the watchman called to the porter, and said, "Behold, a man running alone!" The king said, "He also brings news."