What does the seed of Abraham represent in the New Testament?

The New Testament reveals the profound significance of the seed of Abraham, as seen in Galatians 3:16, which states, 'Now to Abraham and his seed were the promises made. He saith not, And to seeds, as of many; but as of one, And to thy seed, which is Christ.' This highlights that Jesus is the fulfillment of God's promises to Abraham. Furthermore, believers are considered the seed of Abraham through their faith in Christ, becoming heirs according to the promise (Galatians 3:29). This connection emphasizes the unity of believers with Christ, as they share in His inheritance and the blessings promised to Abraham.