“…concerning His Son Jesus Christ our Lord, who was born of the seed of David according to the flesh” (Romans 1:3).
Not only was the gospel of God promised before through His prophets in the Holy Scriptures, its good tidings of great joy is rooted in the life, death, and resurrection of Jesus Christ, the Son of David.
Because He was fully human—i.e., the Son of Man, He had a family tree which could be traced all the way back to Adam (Luke 3:23-38). David, the man after God’s own heart, was an ancestor of both Jesus’ stepfather, Joseph (Matthew 1:6) and mother, Mary (Luke 3:31).
One specific reason for His conception by the Holy Spirit in Mary’s womb was because the Lord God was going to give Him the throne of His father David and reign over the house of Jacob forever, having an endless kingdom (Luke 1:32-33). With His resurrection, Christ was raised to sit on David’s throne, exalted to the right hand of God (Acts 2:29-33; Ephesians 1:20) where He was given an everlasting dominion, glory, and an indestructible kingdom (Daniel 7:13-14, 2:44).
The baptism of the Holy Spirit on the apostles on the Day of Pentecost in Jerusalem demonstrated Christ’s comprehensive power and authority (Acts 2:33). David’s son had been coronated King of kings and Lord of lords, the only Potentate (1 Timothy 6:15). Just as Jehovah had promised David a thousand years earlier, God had set up his seed who had come from his own body. He had established the throne of His kingdom forever (2 Samuel 7:12-13). David’s house, kingdom, and throne were established forever (2 Samuel 7:16).
The martyr Stephen (Acts 7:55-56) and the apostle John (Revelation 5) are eyewitnesses of this truth.
God keeps His word.
