I would refer you to our discussion of the Davidic Covenant and its fulfillment in Christ in chapter 7. See paragraph 10 for our benefit from this office.
Christ the Savior
He is the Savior of His church, of His people. He gave Himself up for her, to save and purify her. This point is very clear in the Bible. The purpose of Christ in dying on the Cross was to save His church from the deserved wrath of God and to atone for her sins.
Eph. 5:25-27 Husbands, love your wives, as Christ loved the church and gave himself up for her, 26 that he might sanctify her, having cleansed her by the washing of water with the word, 27 so that he might present the church to himself in splendor, without spot or wrinkle or any such thing, that she might be holy and without blemish.
It is clear from this glorious passage what effect the death of Christ has. He died for His bride. His love drove Him to give Himself up for her, so that He may be glorified in them, His own people. That He may make them brothers and sisters of His, holy and blameless. The Lord Christ is twice called the Savior of the world (John 4:42; 1 John 4:14). He is the only hope that the world has for redemption. He is the only One Who can save us from the wrath of God due to our sins. He is the only One Who can reconcile us back to God in a harmonious relationship. In fact, it is through the shedding of His blood that He has redeemed for God definitely and not hypothetically, people from every corner of the world (Rev. 5:9) because He has died for them (John 11:49-52; 1 John 2:1-2). It is through His sacrifice and perfect life that we are counted righteous and forgiven of all our sins. He is Christ the Lord, the Anointed One to save His people (Matt. 1:21).
It is important for us to remember that when we speak of Christ as our Savior, we speak of Him as our Savior from God’s judgment and wrath (Rom. 5:9). The wrath of God was set against us, and the Lord Jesus came to willfully and freely take upon Himself our sin so that the righteous and dreadful wrath of God could be atoned for. Christ did not come to save us from our problems or our miserable lives, but He came to save us from the wrath of God!
Christ the Head
A handful of texts speak of the Lord Christ as being the head of the church. In this section, I want to explore what that means. The Confession, following the Reformed tradition and Sola Scriptura, abhors the doctrine that the Roman Catholic Church holds concerning the Pope being the head of the church and denounces it with very strong words:
The Lord Jesus Christ is the Head of the church, in whom, by the appointment of the Father, all power for the calling, institution, order or government of the church, is invested in a supreme and sovereign manner; neither can the Pope of Rome in any sense be head thereof, but is that antichrist, that man of sin, and son of perdition, that exalteth himself in the church against Christ, and all that is called God; whom the Lord shall destroy with the brightness of his coming. (1689 26:4)
The Lord Jesus Christ is described as the head of the body, that is, the church—
Col. 1:18 And he is the head of the body, the church. He is the beginning, the firstborn from the dead, that in everything he might be preeminent.
The context in Colossians 1 testifies to the Lord Jesus’ divinity and greatness. Paul does not forget to mention the magnificent truth that the Lord Jesus is the head of the church and is preeminent ...