The Qualities Of Our Mediator

Sermon: The Qualities Of Our Mediator, Heidelberg Catechism, Lord's Day 6, Questions 16-19, John 1:1-18
John H. Johnson, Tyler Orthodox Presbyterian Church
2022-05-15

HEIDELBERG CATECHISM
PART 2: OUR DELIVERANCE: LORD'S DAY 5-31
LORD'S DAY 6: Questions 16-19

Q16. Why must He be a true and righteous man?
A. He must be a true man because the justice of God requires that the same human nature which has sinned should pay for sin.[1] He must be a righteous man because one who himself is a sinner cannot pay for others.[2]
[1] Rom: 5:12, 15; I Cor. 15:21; Heb. 2:14-16. [2] Heb. 7:26, 27; I Pet. 3:18.

Q17. Why must He at the same time be true God?
A. He must be true God so that by the power of His divine nature[1] He might bear in His human nature the burden of God's wrath,[2] and might obtain for us and restore to us righteousness and life.[3]
[1] Is. 9:5. [2] Deut. 4:24; Nah. 1:6; Ps. 130:3. [3] Is. 53:5, 11; John 3:16; II Cor. 5:21.

Q18. But who is that Mediator who at the same time is true God and a true and righteous man?
A. Our Lord Jesus Christ,[1] whom God made our wisdom, our righteousness and sanctification and redemption (I Corinthians 1:30).
[1] Matt. 1:21-23; Luke 2:11; I Tim. 2:5; 3:16.

Q19. From where do you know this?
A. From the holy gospel, which God Himself first revealed in Paradise.[1] Later, He had it proclaimed by the patriarchs[2] and prophets,[3] and foreshadowed by the sacrifices and other ceremonies of the law.[4] Finally, He had it fulfilled through His only Son.[5]
[1] Gen. 3:15. [2] Gen. 12:3; 22:18; 49:[3] Is. 53; Jer. 23:5, 6; Mic. 7:18-20; Acts 10:43; Heb. 1:1. [4] Lev. 1:7; John 5:46; Heb. 10:1-[5] Rom. 10:4; Gal. 4:4, 5; Col. 2:17.