Matthew 1:16 - The Christ
Jesus is called “Christ” after the listing of the lineage ending with Him as “Jesus” son of Joseph and Mary. Actually, the primary emphasis is on his birth by Mary, not on his identity as son of Joseph. Joseph is mentioned more in relationship to Mary than to Jesus. This again is odd, since the genealogy is focused mostly on the parenting line through the fathers. Only select women are mentioned and at the end Jesus comes after Mary not Joseph. It underscores the nature of Jesus birth, indicating that though the lineage from David is intact (Joseph), Jesus is not born of the seed of Joseph, but is born only of Mary from the seed of the Holy Spirit.
“Christ” is an identity, not a name. It is ascribed to Jesus, the man. It means “anointed” (Acts 10:38) and is used in the Old Testament to refer to the status of the kings (1 Samuel 2:10; 24:6, 10; 1 Chronicles 14:8; Psalm 18:50, etc.), priests (Exodus 40:15; Leviticus 4:3,5,16, etc.) and prophets (1 Kings 19:16; Isaiah 61:1). Jesus lives and moves in the office of all three. He is the “Christ” - anointed priest, king and prophet - for which all the others were types. He is the fulfillment of the anticipation that came from the limitations of the forerunners and prophetic longings of the nation that it produced.
In these cases, the focus is on the Lord anointing for the office mandated. In the prophetic passage in particular (Isaiah 61:1), the Holy Spirit gets specific mention as the resource for the execution of the office. This can also be seen in the kings (1 Samuel 16:13). Thus Jesus, as the fulfillment of the three offices, has the Spirit upon Him by anointing (his own testimony in Luke 4:18) and without measure (John 3:34).