As for you, you were dead in your transgressions and sins, in which you used to live when you followed the ways of this world and of the ruler of the kingdom of the air, the spirit who is now at work in those who are disobedient (Eph 2:1-2).
The whole process of the salvation of humanity after the Fall of Man can been seen as creation processed in cycles of destruction and creation just as the whole universe was created and is still in the process of destruction and creation. The same power used to create this universe operated to redeem us who were once dead in our transgressions and sins. God has restored us in Christ to the original state in which we humans are once again without blemish or defect. Try to see the similarities between what Paul discusses in Ephesians 2 and the story of creation in Genesis 2.
When the Lord God made the earth and the heavens--and no shrub of the field had yet appeared on the earth and no plant of the field had yet sprung up, for the Lord God had not sent rain on the earth and there was no man to work the ground, but streams came up from the earth and watered the whole surface of the ground (Gen 2:5-6) …
Creation is God’s act of love. It was by his love and mercy that he sent his Son to save us who had become insignificant as dust, and were on our way to the ground.
But because of his great love for us, God, who is rich in mercy, made us alive with Christ even when we were dead in transgressions--it is by grace you have been saved (Eph 2:4-5).
… the Lord God formed the man from the dust of the ground and breathed into his nostrils the breath of life, and the man became a living being (Gen 2:7).
Having been formed and made alive with God’s breath of life, the first man was put in the Garden of Eden. In the same way, having been raised with Christ, we are now seated with him in the heavenly realms.
And God raised us up with Christ and seated us with him in the heavenly realms in Christ Jesus (Eph 2:6) …
Now the Lord God had planted a garden in the east, in Eden; and there he put the man he had formed (Gen 2:8).
“Eden” was a mountain where God sat, and in the “east” of it was the garden where the first man and woman lived. After the fall, they were driven out of the garden eastward, and lived there (Gen 3:24, 4:16). They moved even more eastward, and tried to build the tower of Babel there (11:2). Note that the tabernacle and the temple were built facing east. But Abraham, for the first time in Genesis, moved from Ur, which was in the east, westward to the land God showed him. It was the beginning of God’s creation for our human race, and he himself was created so that he could do good works God prepared for him.
For we are God's workmanship, created in Christ Jesus to do good works, which God prepared in advance for us to do (Eph 2:10).
What lies behind the passage following Eph 2:11 is the story of Cain and Abel with the former representing the Gentiles and the latter Israel, the chosen people. In Christ, these two kinds of peoples have come to be united together as one family.
But now in Christ Jesus you who once were far away have been brought near through the blood of Christ. For he himself is our peace, who has made the two one and has destroyed the barrier, the dividing wall of hostility, by abolishing in his flesh the law with its commandments and regulations (Eph 2:13-14).
The blood that once cried out from the ground for an unjust death causing hostility between the Gentiles and the Hebrews is replaced by the blood that now cries out for God’s unchanging love to create one man bringing peace and unity upon the earth.
His purpose was to create in himself one new man out of the two, thus making peace, and in this one body to reconcile both of them to God through the cross, by which he put to death their hostility. … Consequently, you are no longer foreigners and aliens, but fellow citizens with God's people and members of God's household (Eph 2:13-19), …