QUOTE : The Old Testament predicted the coming of the Messiah. But the idea that He would actually live in His redeemed church, made up mostly of Gentiles, was not revealed. The New Testament is clear that Christ, by the Holy Spirit, takes up permanent residence in all believers (cf. Rom. 8:9; 1 Cor. 6:19, 20; Eph. 2:22). The revelation of the riches of the glory of this mystery among the Gentiles awaited the New Testament (Eph. 3:3-6). Believers, both Jew and Gentile, now possess the surpassing riches of the indwelling Christ (John 14:23; Rom. 8:9-10; Gal. 2:20; Eph. 1:7, 17-18; 3:8-10, 16-19; Phil. 4:19). The church is described as “the temple of the living God; just as God said, ‘I will dwell in them and walk among them; and I will be their God, and they shall be My people’” (2 Cor. 6:16). That Christ indwells all believers is the source for their hope of glory and is the subject or theme of the gospel ministry. What makes the gospel attractive is not just that it promises present joy and help, but that it promises eternal honor, blessing, and glory. When Christ comes to live in a believer, His presence is the anchor of the promise of heaven—the guarantee of future bliss eternally (cf. 2 Cor. 5:1-5; Eph. 1:13-14). In the reality that Christ is living in the Christian is the experience of new life and hope of eternal glory.