Explain Jesus' righteousness from Abraham to believers today? What promises does God make to believers from Abraham to Jesus?

From Abraham to believers today, Jesus' righteousness is seen as the fulfillment of God's promise to Abraham in Genesis 15:6, where it says that Abraham believed God and it was credited to him as righteousness. This righteousness is imputed to believers through faith in Jesus Christ, as Romans 3:22 states that the righteousness of God through faith in Jesus Christ is available to all who believe.

Throughout the Old Testament, God made promises to Abraham and his descendants, including the promise of a land (Genesis 12:7), numerous descendants (Genesis 15:5), and blessings for all nations through his seed (Genesis 22:18). These promises find their fulfillment in Jesus Christ, who is the ultimate descendant of Abraham (Galatians 3:16) and through whom all nations are blessed (Galatians 3:8).

Furthermore, believers today are heirs of the promise given to Abraham, as Galatians 3:29 says that if we belong to Christ, then we are Abraham's seed and heirs according to the promise. This means that believers share in the blessings and promises made to Abraham, including righteousness through faith in Jesus Christ and the hope of eternal life.