I've read this quote by Augustine several times over the years. Can you give me any examples of both parts of the quote to clarify it for me?
The Old Testament points forward to the coming of the promised Redeemer, the Serpent-crusher of Genesis, the Prophet like Moses, the Suffering Servant of Isaiah, the Son of David, the Messiah of Daniel, and the Humble King of Zechariah.
Four hundred years after God spoke to the prophet Malachi, God spoke again. The message was that the prophecy of Malachi 3:1 was soon to be fulfilled, that a prophet was to prepare the way for the Lord. The Messiah was on His way. That prophet was John the Baptist.
The New Testament Gospels reveal the promised Messiah, the Christ, in the person of Jesus of Nazareth. The Old Testament lays the foundation for the teachings and events found in the New Testament. The New Testament is only completely understood in the light of the events, characters, laws, sacrificial system, covenants, and promises of the Old Testament. In this way the promises contained in the Old Testament are revealed in the New Testament.
The OT is the NT concealed.
This has similarities to Hebrews 10:1
For the law having a shadow of the good things to come, not the very image of the things; by the selfsame sacrifices which they offer continually every year, can never make the comers thereunto perfect
Also Colossians 2:16-17
Let no man therefore judge you in meat or in drink, or in respect of a festival day, or of the new moon, or of the sabbaths, Which are a shadow of things to come, but the body is of Christ
The NT is the OT revealed.
The gospels, especially the gospel according to St. Matthew are saturated with actions and words of Jesus and others as being fulfillments of various OT passages.
Jesus spoke to two disciples on the road to Emmaus in Luke:
25 He said to them, “How unwise and slow you are to believe in your hearts all that the prophets have spoken! 26 Didn’t the Messiah have to suffer these things and enter into His glory?” 27 Then beginning with Moses and all the Prophets, He interpreted for them the things concerning Himself in all the Scriptures.
1 Peter 1:1:
10 Concerning this salvation, the prophets who prophesied about the grace that would come to you searched and carefully investigated. 11 They inquired into what time or what circumstances[f] the Spirit of Christ within them was indicating when He testified in advance to the messianic sufferings[g] and the glories that would follow.[h] 12 It was revealed to them that they were not serving themselves but you. These things have now been announced to you through those who preached the gospel to you by the Holy Spirit sent from heaven. Angels desire to look into these things.
In Deuteronomy 18, Moses foretells a prophet (which Hebrews affirms is Jesus):
15 “The Lord your God will raise up for you a prophet like me from among your own brothers. You must listen to him.
I am more stupid than any other man,[c] and I lack man’s ability to understand. 3 I have not gained wisdom, and I have no knowledge of the Holy One. 4 Who has gone up to heaven and come down? Who has gathered the wind in His hands? Who has bound up the waters in a cloak? Who has established all the ends of the earth? What is His name, and what is the name of His Son— if you know?
The old is in the new revealed.
Despite what some denominations believe, the New Testament didn't replace the Old Testament. Rather, the New Testament expanded on what was taught in the old.
The New Testament explains the spiritual meaning of the physical laws and commandments (e.g. "don't kill" also means "don't hate").
The New Testament explains that the JHVH of the Old Testament, the "I AM", was actually the being that was incarnated as Jesus.
Christianity reveals an entirely new meaning to the Old Testament (and without changing its original meaning).
The new is in the old concealed.
The New Testament presents God's plan for humanity, and shows how this plan was foreshadowed by Old Testament holidays. God's plan of salvation is compared to an agricultural harvest.
- Passover's sacrificial lamb symbolize Jesus's sacrifice.
- The Days of Unleavened Bread symbolize repentance and the rejection of sin in favour of the bread of life.
- Pentecost symbolizes God's gift of revealed knowledge, and the gift of his spirit to the first-fruits of the harvest of mankind.
- The Feast of Trumpets symbolizes Jesus's return to Earth to save mankind from itself.
- The Day of Atonement symbolizes the forgiveness of sin and the removal of Satan at the start of the Millennium.
- The Feast of Tabernacles symbolizes Jesus temporarily living on Earth during the Millennium and the "restoration of all things".
- The Last Great Day symbolizes the Judgement of all of mankind at the end of the Millennium, when the wheat is separated from the chaff, and the chaff burned to ashes.
The seven holy festivals are celebrated annually as a reminder of God's plan. All of Christianity was present in the Old Testament, but until Jesus explained it, its true meaning couldn't be understood.