1Ⅰ Second Samuel 7:12-14a is the unveiling of a prophecy through typology showing us that we need God to build Christ into our intrinsic constitution so that our entire being will be reconstituted with Christ—Matt. 16:18:
2A God's eternal economy according to His heart's desire is to build Himself into man and to build man into Him (Eph. 3:16-17a); this mutual abode is the reality of the Body of Christ consummating in the New Jerusalem (John 15:4-5a; 1 John 2:27-28; 3:24; 4:13, 15-16; Rev. 21:3, 22).
41 God desires to work Himself in Christ into us; everything that Christ is and everything that Christ has accomplished are for this one thing—Phil. 2:13; Eph. 3:17a; Col. 3:10-11.