For I know the thoughts that I think toward you, saith the Lord, thoughts of peace, and not of evil, to give you an expected end. God's ultimate plan, as shown in Scripture, is to bring all things, both earthly and heavenly (spiritual) belonging to Him under the single headship of Christ. As Paul explained to the Ephesians, God revealed His will to us (formerly a mystery) of His grand plan of Christ’s headship: [He planned] for the maturity of the times and the climax of the ages to unify all things and head them up and consummate them in Christ, [both] things in heaven and things on the earth”(Eph 1:10, Amplified Bible)