He made known to us the mystery of His will, according to His kind intention which He purposed in Him with a view to an administration suitable to the fullness of the times, that is, the summing up of all things in Christ, things in the heavens and things on the earth. In Him also we have obtained an inheritance, having been predestined according to His purpose who works all things after the counsel of His will, to the end that we who were the first to hope in Christ would be to the praise of His glory.
New American Standard Bible, 1995 Edition
St. Paul tells his readers the answer to what God’s will for the world is: all things are going to be under the headship of Jesus Christ. What’s more, we find out that the plan has always been to bring everything under Jesus Christ, starting back in Genesis.