The Gospel of Matthew begins, "The book of the generation of Jesus Christ, the son of David, the son of AvrahamAbraham."
Thus, this is what is intended to immediately capture the reader's attention. And, why is this?
To AvrahamAbraham, God said (Gen. 22:18), "And all the nations of the earth shall be blessed in your seed because you obeyed My voice."
And all the nations of the earth shall be blessed in your seed because you obeyed My voice.
The seed of Avraham in which all the nations of the earth would be blessed was Jesus Christ (Acts 3:25-26; Gal. 3:16).
To David, God said (Ps. 132:11), "...Of the fruit of your body will I set upon your throne."
...Of the fruit of your body will I set upon your throne.
The fruit of David's loins was Jesus Christ (Acts 2:30).
Therefore, Matthew intends to establish the fulfillment of God's promises to AvrahamAbraham and David, thereby declaring that Jesus is the Christ (Messiah).