“Long ago, at many times and in many ways, God spoke to our fathers by the prophets, but in these last days He has spoken to us by his Son, (Jesus) whom He appointed the heir of all things, through whom also He created the world. He is the radiance of the glory of God and the exact imprint of His nature, and He upholds the universe by the word of His power. After making purification for sins, He sat down at the right hand of the Majesty on high, having become as much superior to angels as the name He has inherited is more excellent than theirs.” Hebrews 1:1-3
Notice the plan is all about JESUS ( the radiance of the glory of God and the exact imprint of His nature). God our heavenly Father, created the world through Jesus and He upholds the universe by the word of His power. Jesus came into this world to pay the price for our SIN (disobedience of Adam and Eve at the Fall of Man, the penalty for which was death). Jesus died in our place “making purification for sins” so that whoever believes in Him can have eternal life.
The only important event missing from this summary is Jesus return to this earth to complete the promise the Father made to Abraham. Jesus will rule all nations, the world from Jerusalem. God has unfinished business with His nation Israel that He established for His purposes.
“And when He (Jesus) had said these things, as they were looking on, He was lifted up, and a cloud took him out of their sight. And while they were gazing into heaven as he went, behold, two men stood by them in white robes, and said, “Men of Galilee, why do you stand looking into heaven? This Jesus, who was taken up from you into heaven, will come in the same way as you saw him go into heaven.” Acts 1:9-11