'Alone' in the Bible

Jonadab, the son of Shimeah, David’s brother, responded, “Do not let my lord suppose they have put to death all the young men, the king’s sons, for Amnon alone is dead; because by the intent of Absalom this has been determined since the day that he violated his sister Tamar.

Then David said to Abishai and to all his servants, “Behold, my son who came out from me seeks my life; how much more now this Benjamite? Let him alone and let him curse, for the Lord has told him.

I will come upon him while he is weary and exhausted and terrify him, so that all the people who are with him will flee. Then I will strike down the king alone,