Sacraments of Certainty (Heidelberg Catechism QA 66-68; Gen 15, Heb 6:13-20)

Confession: Heidelberg Catechism Lord’s Day 25 QA 66-68

Scripture: Genesis 15, Hebrews 6:13-20

Preacher: Rev. David Inks

Sermon Outline
Introduction,
I. Christ Speaks to Us Himself to Start Faith
II. Christ Seals to Us Himself to Certify Faith
III. Christ and Him Crucified is the Way to Covenant Communion
Conclusion

Heidelberg Catechism Lord’s Day 25
Q & A 66
Q. What are sacraments?
A. Sacraments are holy signs and seals for us to see. They were instituted by God so that by our use of them he might make us understand more clearly the promise of the gospel, and might put his seal that promise. And this is God’s gospel promise: to forgive our sins and give us eternal life by grace alone because of Christ’s one sacrifice finished on the cross.

Q & A 67
Q. Are both the word and the sacraments then intended to focus our faith on the sacrifice of Jesus Christ on the cross as the only ground of our salvation?
A. Right! In the gospel the Holy Spirit teaches us and through the holy sacraments he asures us that our entire salvation rests on Christ’s one sacrifice for us on the cross.

Q & A 68
Q. How many sacraments did Christ institute in the New Testament?
A. Two: holy baptism and the Lord’s supper.

Genesis 15 (ESV)
1 After these things the word of the Lord came to Abram in a vision: “Fear not, Abram, I am your shield; your reward shall be very great.” 2 But Abram said, “O Lord God, what will you give me, for I continue childless, and the heir of my house is Eliezer of Damascus?” 3 And Abram said, “Behold, you have given me no offspring, and a member of my household will be my heir.” 4 And behold, the word of the Lord came to him: “This man shall not be your heir; your very own son shall be your heir.” 5 And he brought him outside and said, “Look toward heaven, and number the stars, if you are able to number them.” Then he said to him, “So shall your offspring be.” 6 And he believed the Lord, and he counted it to him as righteousness. 7 And he said to him, “I am the Lord who brought you out from Ur of the Chaldeans to give you this land to possess.” 8 But he said, “O Lord God, how am I to know that I shall possess it?” 9 He said to him, “Bring me a heifer three years old, a female goat three years old, a ram three years old, a turtledove, and a young pigeon.” 10 And he brought him all these, cut them in half, and laid each half over against the other. But he did not cut the birds in half. 11 And when birds of prey came down on the carcasses, Abram drove them away. 12 As the sun was going down, a deep sleep fell on Abram. And behold, dreadful and great darkness fell upon him. 13 Then the Lord said to Abram, “Know for certain that your offspring will be sojourners in a land that is not theirs and will be servants there, and they will be afflicted for four hundred years. 14 But I will bring judgment on the nation that they serve, and afterward they shall come out with great possessions. 15 As for you, you shall go to your fathers in peace; you shall be buried in a good old age. 16 And they shall come back here in the fourth generation, for the iniquity of the Amorites is not yet complete.” 17 When the sun had gone down and it was dark, behold, a smoking fire pot and a flaming torch passed between these pieces. 18 On that day the Lord made a covenant with Abram, saying, “To your offspring I give this land, from the river of Egypt to the great river, the river Euphrates, 19 the land of the Kenites, the Kenizzites, the Kadmonites, 20 the Hittites, the Perizzites, the Rephaim, 21 the Amorites, the Canaanites, the Girgashites and the Jebusites.”

Hebrews 6:13-20 (ESV)
13 For when God made a promise to Abraham, since he had no one greater by whom to swear, he swore by himself, 14 saying, “Surely I will bless you and multiply you.” 15 And thus Abraham, having patiently waited, obtained the promise. 16 For people swear by something greater than themselves, and in all their disputes an oath is final for confirmation. 17 So when God desired to show more convincingly to the heirs of the promise the unchangeable character of his purpose, he guaranteed it with an oath, 18 so that by two unchangeable things, in which it is impossible for God to lie, we who have fled for refuge might have strong encouragement to hold fast to the hope set before us. 19 We have this as a sure and steadfast anchor of the soul, a hope that enters into the inner place behind the curtain, 20 where Jesus has gone as a forerunner on our behalf, having become a high priest forever after the order of Melchizedek.

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