Paul often used the word citizenship in his letters. In the 1st century citizenship meant being a good citizen of a nation. Even if a person lived hundreds of miles away from Rome, they were expected to act as a good Roman citizen.
The Christian has citizenship in heaven and earth. Our citizenship in heaven ought to make us a better citizen on earth. As a heavenly citizen we should not be attracted to things of this world, for our focus should be on eternal values and not passing fads.
When Jesus returns he will, “subdue all things unto himself,” (Phil 3:21b KJV). This word subdue means, “to arrange in ranks.” Isn’t that our problem today? We do not arrange things in their proper order. Consequently we waste our life on useless activities that cloud our vision so that the return of Christ is not a real motivating power in our lives.
A citizen of heaven lets Christ Jesus arrange the things in their life according to their proper rank. This means we live with eternity’s values in view, and dare to believe God’s promise that “He that does the will of God abides forever” (1John 2:17).