1. It pleased God, in his eternal purpose, to choose and ordain the Lord Jesus, his only begotten Son, to be the Mediator between God and man, the Prophet, Priest, and King, the Head and Savior of his church, the Heir of all things, and Judge of the world: unto whom he did from all eternity give a people, to be his seed, and to be by him in time redeemed, called, justified, sanctified, and glorified.
2. The Son of God, the second person in the Trinity, being very and eternal God, of one substance and equal with the Father, did, when the fullness of time was come, take upon him man’s nature, with all the essential properties, and common infirmities thereof, yet without sin; being conceived by the power of the Holy Ghost, in the womb of the virgin Mary, of her substance. So that two whole, perfect, and distinct natures, the Godhead and the manhood, were inseparably joined together in one person, without conversion, composition, or confusion. Which person is very God, and very man, yet one Christ, the only Mediator between God and man.
3. The Lord Jesus, in his human nature thus united to the divine, was sanctified, and anointed with the Holy Spirit, above measure, having in him all the treasures of wisdom and knowledge; in whom it pleased the Father that all fullness should dwell; to the end that, being holy, harmless, undefiled, and full of grace and truth, he might be thoroughly furnished to execute the office of a mediator, and surety. Which office he took not unto himself, but was thereunto called by his Father, who put all power and judgment into his hand, and gave him commandment to execute the same.
7. Christ, in the work of mediation, acts according to both natures, by each nature doing that which is proper to itself; yet, by reason of the unity of the person, that which is proper to one nature is sometimes in Scripture attributed to the person denominated by the other nature.
WLC Q&A 36-40
Q. 36. Who is the mediator of the covenant of grace?
A. The only mediator of the covenant of grace is the Lord Jesus Christ, who, being the eternal Son of God, of one substance and equal with the Father, in the fullness of time became man, and so was and continues to be God and man, in two entire distinct natures, and one person, forever.
Q. 37. How did Christ, being the Son of God, become man?
A. Christ the Son of God became man, by taking to himself a true body, and a reasonable soul, being conceived by the power of the Holy Ghost in the womb of the virgin Mary, of her substance, and born of her, yet without sin.
Q. 38. Why was it requisite that the mediator should be God?
A. It was requisite that the mediator should be God, that he might sustain and keep the human nature from sinking under the infinite wrath of God, and the power of death; give worth and efficacy to his sufferings, obedience, and intercession; and to satisfy God’s justice, procure his favor, purchase a peculiar people, give his Spirit to them, conquer all their enemies, and bring them to everlasting salvation.
Q. 39. Why was it requisite that the mediator should be man?
A. It was requisite that the mediator should be man, that he might advance our nature, perform obedience to the law, suffer and make intercession for us in our nature, have a fellow-feeling of our infirmities; that we might receive the adoption of sons, and have comfort and access with boldness unto the throne of grace.
Q. 40. Why was it requisite that the mediator should be God and man in one person?
A. It was requisite that the mediator, who was to reconcile God and man, should himself be both God and man, and this in one person, that the proper works of each nature might be accepted of God for us, and relied on by us, as the works of the whole person.
WSC Q&A 21-22
Q. 21. Who is the redeemer of God’s elect?
A. The only redeemer of God’s elect is the Lord Jesus Christ, who, being the eternal Son of God, became man, and so was, and continueth to be, God and man in two distinct natures, and one person, forever.
Q. 22. How did Christ, being the Son of God, become man?
A. Christ, the Son of God, became man, by taking to himself a true body and a reasonable soul, being conceived by the power of the Holy Ghost in the womb of the virgin Mary, and born of her, yet without sin.
Belgic Confession: Article 26
ARTICLE 26 – CHRIST’S INTERCESSION
We believe that we have no access to God except through the only Mediator1 and Advocate Jesus Christ the righteous.2 For this purpose He became man, uniting together the divine and human nature, that we men might not be barred from but have access to the divine majesty.3 This Mediator, however, whom the Father has ordained between Himself and us, should not frighten us by His greatness, so that we look for another according to our fancy. There is no creature in heaven or on earth who loves us more than Jesus Christ.4 Though He was in the form of God, He emptied Himself, taking the form of man and of a servant for us (Phil 2:6-7), and was made like His brethren in every respect (Heb 2:17). If, therefore, we had to look for another intercessor, could we find one who loves us more than He who laid down His life for us, even while we were His enemies (Rom 5:8-10)? If we had to look for one who has authority and power, who has more than He who is seated at the right hand of the Father5 and who has all authority in heaven and on earth (Mat 28:18)? Moreover, who will be heard more readily than God’s own well-beloved Son?6
Therefore it was pure lack of trust which introduced the custom of dishonouring the saints rather than honouring them, doing what they themselves never did nor required. On the contrary, they constantly rejected such honour according to their duty,7 as appears from their writings. Here one ought not to bring in our unworthiness, for it is not a question of offering our prayers on the basis of our own worthiness, but only on the basis of the excellence and worthiness of Jesus Christ,8 whose righteousness is ours by faith.9
Therefore with good reason, to take away from us this foolish fear or rather distrust, the author of Hebrews says to us that Jesus Christ was made like His brethren in every respect, so that He might become a merciful and faithful High Priest in the service of God, to make expiation for the sins of the people. For because He Himself has suffered and been tempted, He is able to help those who are tempted (Heb 2:17-18). Further, to encourage us more to go to Him, he says: Since then we have a great High Priest who has passed through the heavens, Jesus, the Son of God, let us hold fast our confession. For we have not a High Priest who is unable to sympathize with our weaknesses, but one who in every respect has been tempted as we are, yet without sin. Let us then with confidence draw near to the throne of grace, that we may receive mercy and find grace to help in time of need (Heb 4:14-16 ).10 The same letter says: Therefore brethren, since we have confidence to enter the sanctuary by the blood of Jesus . . . let us draw near with a true heart in full assurance of faith, etc. (Heb 10:19, Heb 10:22). Also, Christ holds His priesthood permanently, because He continues forever. Consequently He is able for all time to save those who draw near to God through Him, since He always lives to make intercession for them (Heb 7:24-25).11 What more is needed? Christ Himself says: I am the way, and the truth, and the life; no one comes to the Father, but by Me (John 14:6). Why should we look for another advocate? It has pleased God to give us His Son as our Advocate. Let us then not leave Him for another, or even look for another, without ever finding one. For when God gave Him to us, He knew very well that we were sinners.
In conclusion, according to the command of Christ, we call upon the heavenly Father through Christ our only Mediator,12 as we are taught in the Lord’s prayer.13 We rest assured that we shall obtain all we ask of the Father in His Name (John 16:23).14
1. 1 Tim 2:5. 2. 1 John 2:1. 3. Eph 3:12. 4. Mat 11:28; John 15:13; Eph 3:19; 1 John 4:10. 5. Heb 1:3; Heb 8:1. 6. Mat 3:17; John 11:42; Eph 1:6.7. Acts 10:26; Acts 14:15. 8. Jer 17:5, Jer 177; Acts 4:12. 9. 1 Cor 1:30.10. John 10:9; Eph 2:18; Heb 9:24. 11. Rom 8:34. 12. Heb 13:15. 13. Mat 6:9-13; Luke 11:2-4. 14. John 14:13.
Heidelberg Catechism Q&A 15-18
15. WHAT KIND OF MEDIATOR AND REDEEMER, THEN, MUST WE SEEK?
One who is a true and righteous man, and yet more powerful than all creatures, that is, one who is also true God.
Lord’s Day 6
16. WHY MUST HE BE A TRUE AND RIGHTEOUS MAN?
Because the justice of God requires that the same human nature which has sinned should make satisfaction for sin; but one who is himself a sinner cannot satisfy for others.
17. WHY MUST HE ALSO BE TRUE GOD?
That by the power of His Godhead He might bear in His manhood the burden of God’s wrath, and so obtain for and restore to us righteousness and life.
18. BUT WHO NOW IS THAT MEDIATOR, WHO IN ONE PERSON IS TRUE GOD AND ALSO A TRUE AND RIGHTEOUS MAN?
Our Lord Jesus Christ, who is freely given unto us for complete redemption and righteousness.