If you like problems that already have solutions, read Ephesians 2! For we find here that the problem was, "you were dead in trespasses and sins," vs.1. The solution is, "But God ... made us alive together with Christ ..." vs. 4-5. The same almighty power that was laid upon the body of the dead Christ, and raised Him from the dead to the highest seat at the right hand of God, is now laid upon those who were dead in trespasses and sins to share by faith the glories of eternal life.
In the previous verses of this chapter, the idea is conveyed of inevitable ruin, when all hope for man is hopeless. "But God ..." vs. 4, very emphatically and wonderfully reverses the picture. Rescue is available for those who would otherwise plunge into ruin. God shows grace and mercy ... mercy that is rich and exhaustless. This reverses all that is implied in the words "dead in trespasses," vs. 5. We were once in consequence of our sins, a spiritual corpse, given up to corruption. Nothing could save us except the life-giving power of God.
"... by grace you have been saved," vs. 5. Paul adds this by way of explanation lest the Gentiles should think God partial in the love He showed for the Jews. We read in vs. 8, "For by grace you have been saved through faith, and that not of yourselves; it is the gift of God.". We were dead, insensitive to God and the needs of others, out of touch with ourselves. But God brought us to life, vs. 5, and put us into a relationship with His Son, vs. 6, in order to shower His infinite love and kindness on us, vs. 7.
Verses 12-16 teaches that we were separate from God and His people, but in Christ all divisions among men and with God are broken down. We are now God's creations, able to serve Him, vs. 10. We live in peace and share in the availability of His attention, vss. 17-18. And to fulfill God's purpose, we are formed as a family, or household, and we fit together, as a perfectly designed and growing building -- a "holy temple in the Lord" and a "habitation of God in the Spirit," vss. 19-22.
Christians are fused together in Christ, for a habitation, a dwelling place of God on earth. He dwells in this holy habitation in the person of the Spirit. Sin is conquered, Rom. 8:37-39. "There is therefore no condemnation for those who are in Christ Jesus," Rom. 8:1. Christ has taken down all barriers, all obstacles that stand in the way of man's salvation. In simple trust and obedience, man has only to obey the gospel plan of salvation and thereafter walk in the light until he faces the King in judgment where he will stand without condemnation. Herein lies the joy and happiness that there awaits for him a crown of life beyond the trials of this earth.
Oh, what a fellowship!