When we praise God constantly, God reveals His plan to us also!
In this psalm, David is singing a song that tells about Jesus Christ. David had a close relationship with God and God revealed God’s plant to him in his prayer about many things. However, this psalm is special because it talks about Jesus who is coming to us a thousand years after the reign of King David! When we read this psalm, therefore, we should replace the word <The Lord> with <God> and <my Lord> with <Jesus>.
“The Lord (God) says to my lord (Jesus), ‘Sit at my right hand until I make your enemies your footstool.’ The Lord (God) sends out from Zion your (Jesus) mighty scepter. Rule in the midst of your (Jesus) foes. Your (Jesus) people will offer themselves willingly on the day you (Jesus) lead your forces on the holy mountains. From the womb of the morning, like dew, your youth will come to you.”
Jesus has three roles as Priest, Prophet, and King in his person!
When the wise men gave gifts to Jesus, those three gifts symbolized the three roles that Jesus assumed: Gold for Kingship, Frankincense for Prophetic messages and Myrrh for the Sacrificial Death as the High Priest. In this psalm, David is also referring the priesthood of Jesus tracing it back to Melchizedek who appears in Genesis 14 and mentioned again in the Hebrews 7.
“The Lord (God) has sworn and will not change his mind, ‘You (Jesus) are a priest forever according to the order of Melchizedek.’ The Lord (God) is at your (Jesus) right hand; he (God) will shatter kings on the day of his (God’s) wrath. He will execute judgment among the nations, filling them with corpses; he will shatter heads over the wide earth. He will drink from the stream by the path; therefore he will lift up his head.”
We need Jesus at the end of this world!
Because of this last revelation of judgment, we need Jesus, the High Priest, who can plead for us. Otherwise Judgment will fill the earth with corpses. Only through the intercessory prayer and sacrificial death of Jesus, we have hope and eternal life. King David saw this and declared that God is the eternal king. From this psalm on, the psalms move from history to eternity, from complaints to praise, and from Justice to Holiness.