1 Samuel 24

When David had the opportunity to slay Saul in a cave, he said to his brethren -

"...The Lord forbid that I should do this thing unto my master, the Lord’s anointed, to stretch forth mine hand against him, seeing he is the anointed of the Lord."  (1 Samuel 24:6)

Obviously, even though his personal life was in jeopardy, David still recognized the meaning of honoring the "Lord's anointed".

Of being "anointed", David J. Ridges wrote -

"Anointing is often used in the work of the Lord to prepare His people future blessings. Even as elders administer to the sick, consecrated oil is used to prepare the person for the blessings that may be pronounced a few moments later in the sealing of the anointing. In summary, anointing is often a preliminary ordinance to later blessings."  Ridges, David J.. The Old Testament Made Easier - Part 2 (Kindle Locations 8664-8667).