The phrase my servant
as it is used for David here (2 Samuel 3:18) is only used in the Bible of Abraham (Genesis 26:24), Moses (Numbers 12:7–8; Joshua 1:2, Joshua 1:7), and Caleb (Numbers 14:24). The phrase highlights the important position of David and his status as a servant subordinate to God.1
5 “Go and tell my servant David, ‘Thus says the LORD: Would you build me a house to dwell in?