Honestly, I think the life of Jesus and his teachings are FAR more important than anything Paul said, yet many churches seem to be based more upon Paul than the gospels. Since Jesus' teachings surpassed the Old Testament, is there any real reason to study it, other than for historical background?
If one were to only study the Gospels, you would miss the pouring out of the Holy Spirit in Acts, you would miss the words of Jesus himself in Revelation, and all the prophecies and law which came before in the Old Testament which pointed towards Christ. The Bible as a whole is the message, not just bits and pieces as is the argument here. Satan himself was proficient at this method of deception.
2 Corinthians 11:3 But I fear, lest by any means, as the serpent beguiled Eve through his subtilty, so your minds should be corrupted from the simplicity that is in Christ.
Also see Genesis 3.
2 Timothy 3:16 All scripture
is given by inspiration of God, and
is profitable for doctrine, for reproof, for correction, for instruction in righteousness:
It does beg the questions, when asserting that the gospels are "all that is needed", why would you forsake the words of those moved by the Holy Spirit in ages past? Why would you ignore the words of the law which God gave in those times of old? Why would you ignore that Jesus himself used the Old Testament extensively? He fulfilled, he did not destroy the words that came before.
Matthew 5:17 Think not that I am come to destroy the law, or the prophets: I am not come to destroy, but to fulfil.
God's word equips us with more than just history. It contains life. It teaches us everything there is to know in how to get to heaven. It teaches us how to discern right teaching from wrong teaching. It equips us to serve God. Meditating on God's Word brings success in life even...
And the whole of the Bible shows how Jesus is God's own word made flesh.
Daniel 3:24-25 Then Nebuchadnezzar the king was astonied, and rose up in haste,
and spake, and said unto his counsellers, Did not we cast three men bound into the midst of the fire? They answered and said unto the king, True, O king.
He answered and said, Lo, I see four men loose, walking in the midst of the fire, and they have no hurt; and the form of the fourth is like the Son of God.
Matthew 18:20 For where two or three are gathered together in my name, there am I in the midst of them.
Matthew 26:24 The Son of man goeth as it is written of him....
You have to read what is written to see. Otherwise you will be led astray.
Isaiah 34:16 Seek ye out of the book of the LORD, and read: no one of these shall fail, none shall want her mate: for my mouth it hath commanded, and his spirit it hath gathered them.
The Lord God gave us the Bible. The gospels are only a portion of it.