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The Relationship Between Old and New Testament

The New is in the Old concealed; The Old is in the New revealed. – Augustine
This saying of Augustine of Hippo connects the New Testament (NT) to the Old Testament (OT) of the
Bible and vice versa. It also gives the message to us about their inseparable relation because, in the
absence of one, none is complete and meaningful. So, the Bible comprises the NT and the OT. Before
the coming of Christ and the initiation of the New Covenant in the death and resurrection of Jesus
Christ, the NT was concealed in the OT. Jesus taught his disciples and others about the OT and divided
the OT as the Law of Moses, Prophets, and Psalms. Also, the OT is full of promises and prophecies. It
is called promises because those promises are given to the People of God. They have enjoyed the
blessings of those promises. But those promises were not limited to the immediate purpose because
those were prophecies. We know that the prophecies are related to the future. There were more hidden
truths in promises and prophecies of the OT, which are revealed by Jesus Christ. In other words, the
true messages and purposes of the OT are embodied and realized in the life and works of Jesus Christ.
Malachi, the last book of The OT, also ends with the prophecies of Christ‘s coming in the prophecy
regarding the coming of His Forerunner, John the Baptist. John the Baptist came to prepare the way of
the LORD, who was about to come to speak on the behalf of God to His people as the True Messenger
of God (Heb.1:1). Even the Hebrew meaning of Malachi is the ―Messenger‖ or the ―Messenger of the
LORD‖.2
―Accordingly, Mal.3:1 offers an important wordplay on the prophet‘s name: ―Behold, I send
My messenger, and he will prepare the way before me.‖ This wordplay suggests that Malachi‘s
ministry was intended to foreshadow that of the coming messenger, who is identifies in the NT as John
the Baptist (Mal.4:1-6).‖ Why am I telling ―Christ‘s coming in the coming of His Forerunner, John the
Baptist‖?3
It is because the NT has revealed this prophecy fully in the Gospels‘ account of our LORD
JESUS CHRIST.
And ―the OT ends with a comma, not a period. There is more to be added. The OT requires the New
Testament to complete it. What is the connection between the end of the OT and the beginning of the
NT? The end of the OT shows why Christ had to come.‖ Therefore, the last book of the OT shows why
Christ had to come. It is because the people of Israel failed to keep God‘s Laws or covenants. They
increased in their lawlessness. They perverted His justice and defiled themselves. They corrupted the
worship of God. They broke all regulations of the Covenant. Finally, God Himself hid from Israel. For
four hundred years, there was no divine revelation, which is called the silent period or the time between
the Testaments (Covenants) or Intertestamental Period.
The OT teaches us about the Sovereignty of God to impress upon our minds to show the ways of God
in His dealings with people, events, and places about our need for the Savior. To achieve and unfold
His redemptive plan for mankind, God uses people; He works through what exists; He creates
impossible odds; He uses simplicity; He always uses and astonishes His enemies; His timing is always
perfect; He always accomplishes His purpose; He always brings glory to His name; He uses the process
as well as the plan; He takes full responsibility for the outcome.
In the real sense, God throughout the OT was preparing the way for the coming of Christ by preparing
the hearts of His people and the world to receive Him in the first coming of His Son, Jesus Christ. Still,
this message is relevant today. We are waiting for the second coming of our Lord and Savior Jesus
Christ, the Son of God. Today, many denominations and congregations suffer the same kind of spiritual
death: an outward from religion that feeds spiritual pride, and the presumptuous arrogance that all is
OK when in fact we are far from God and His ways. Many have drifted to this place of danger. The
preacher of today, who fulfills the role of prophet in proclaiming the word of God to His People, must
expose the same error, proclaim the same warning, and prescribe the same remedy

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