Keys to Open and to Close the Kingdom (HC QA 83-85; Mat 16:13-28, 18:15-20)

Confession: Heidelberg Catechism Lord’s Day 31 QA 83-85

Scripture: Matthew 16:13-28, 18:15-20

Sermon Outline
Introduction,
I. What are the keys of the Kingdom?
II. What is the Gospel?
III.What is Discipline?
Conclusion

Heidelberg Catechism Lord’s Day 30
Q & A 83
Q. What are the keys of the kingdom?
A. The preaching of the holy gospel and Christian discipline toward repentance. Both of them open the kingdom of heaven to believers and close it to unbelievers.

Q & A 84
Q. How does preaching the holy gospel open and close the kingdom of heaven?
A. According to the command of Christ, The kingdom of heaven is opened by proclaiming and publicly declaring to all believers, each and every one, that, as often as they accept the gospel promise in true faith, God, because of Christ’s merit, truly forgives all their sins.

The kingdom of heaven is closed, however, by proclaiming and publicly declaring to unbelievers and hypocrites that, as long as they do not repent, the wrath of God and eternal condemnation rest on them. God’s judgment, both in this life and in the life to come, is based on this gospel testimony.

Q & A 85
Q. How is the kingdom of heaven closed and opened by Christian discipline?
A. According to the command of Christ: Those who, though called Christians, profess unchristian teachings or live unchristian lives, and who after repeated personal and loving admonitions, refuse to abandon their errors and evil ways, and who after being reported to the church, that is, to those ordained by the church for that purpose, fail to respond also to the church’s admonitions—such persons the church excludes from the Christian community by withholding the sacraments from them, and God also excludes them from the kingdom of Christ. Such persons, when promising and demonstrating genuine reform, are received again as members of Christ and of his church.

Matthew 16:13-28
13 Now when Jesus came into the district of Caesarea Philippi, he asked his disciples, “Who do people say that the Son of Man is?” 14 And they said, “Some say John the Baptist, others say Elijah, and others Jeremiah or one of the prophets.” 15 He said to them, “But who do you say that I am?” 16 Simon Peter replied, “You are the Christ, the Son of the living God.” 17 And Jesus answered him, “Blessed are you, Simon Bar-Jonah! For flesh and blood has not revealed this to you, but my Father who is in heaven. 18 And I tell you, you are Peter, and on this rock I will build my church, and the gates of hell shall not prevail against it. 19 I will give you the keys of the kingdom of heaven, and whatever you bind on earth shall be bound in heaven, and whatever you loose on earth shall be loosed in heaven.” 20 Then he strictly charged the disciples to tell no one that he was the Christ. 21 From that time Jesus began to show his disciples that he must go to Jerusalem and suffer many things from the elders and chief priests and scribes, and be killed, and on the third day be raised. 22 And Peter took him aside and began to rebuke him, saying, “Far be it from you, Lord! This shall never happen to you.” 23 But he turned and said to Peter, “Get behind me, Satan! You are a hindrance to me. For you are not setting your mind on the things of God, but on the things of man.” 24 Then Jesus told his disciples, “If anyone would come after me, let him deny himself and take up his cross and follow me. 25 For whoever would save his life will lose it, but whoever loses his life for my sake will find it. 26 For what will it profit a man if he gains the whole world and forfeits his soul? Or what shall a man give in return for his soul? 27 For the Son of Man is going to come with his angels in the glory of his Father, and then he will repay each person according to what he has done. 28 Truly, I say to you, there are some standing here who will not taste death until they see the Son of Man coming in his kingdom.”

Matthew 18:15-20
15 “If your brother sins against you, go and tell him his fault, between you and him alone. If he listens to you, you have gained your brother. 16 But if he does not listen, take one or two others along with you, that every charge may be established by the evidence of two or three witnesses. 17 If he refuses to listen to them, tell it to the church. And if he refuses to listen even to the church, let him be to you as a Gentile and a tax collector. 18 Truly, I say to you, whatever you bind on earth shall be bound in heaven, and whatever you loose on earth shall be loosed in heaven. 19 Again I say to you, if two of you agree on earth about anything they ask, it will be done for them by my Father in heaven. 20 For where two or three are gathered in my name, there am I among them.”

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