God also strengthens his church through the obedience of faith, an expression Paul used to begin this letter and now to conclude to it. It is the obedience to believe the gospel as well as to live it. Or, as one commentator describes it, “obedience always involves faith, and faith always involves obedience.” He who enabled and empowered us to believe so also enables and empowers us to live obedient lives. We shall not be defined by sin and the decay of death but life through the faith God gives: “May we be rich in faith, be strong in faith, live by faith, walk by faith, experience the joy of faith, do the work of faith, hope through faith.” And so, God strengthens his church through the obedience of faith.
Therefore, we must look to the light to know the truth and expose and silence the lies of darkness by shining the light. Darkness says that you are defined by your desires. Light says your identity is in Christ (Gal. 2:20), who is light. Darkness says that you are defined by your past. Light says that you are a new creation in Christ (2 Cor. 5:17), who is light. Darkness says you are defined by what you’ve done. Light says that you are known by whose you are (1 John 3:1), a child of light. Darkness wants you to believe there is no light. Light says that the Lord has “called you out of darkness into his marvelous light” (1 Pet. 2:9).
As a covenant is a bond in blood sovereignly administered, so God’s covenant with his people was fulfilled only and ultimately in Christ. Therefore, all who are covered by the blood of Christ are invited to worship our Lord. We come not through another mediating prophet or priests or presbyters. We worship God only through our Prophet, Priest, and King, our Lord Jesus Christ.