We read where Saul, David and Solomon were anointed as Kings. Does this mean that when Christ returns he will require anointing? Since he arrives as King has He been anointed in heaven and do you think Hebrews 1:9 is in reference to this?
The Hebrew word translated Messiah means Anointed one. In Luke 4:18 Jesus claimed to have been anointed, and since He was quoting from Isaiah 61:1-2, it had to have happened some time in the past. As if to confirm this, Hebrews 1:9 is a quote from Psalm 45:6-7. In addition, the men you cited were anointed at the beginning of their reign to show that God had chosen them. Jesus was chosen long ago.