You and a handful of other people have commented about the New Testament and you all seem to infer that the Old Testament isn't important.
to accept the whole
Word of God as Truth.
I asked my American Christian penpal about this and this is what he said:
" The Apostle Paul said, 'Wherefore I take you to record this day, that I am pure from the blood of all men. For I have not shunned to declare unto you all the counsel of God (Acts 20:26-27, KJV).' At that point, the New Testament hadn't even been written yet, so all he had was the Old Testament. The analogy Paul used here implies that men would die in their sins if he didn't preach from the Old Testament.
The Lord Jesus Christ taught the Kingdom Parables in Matthew 13. 'Then said he unto them, Therefore every scribe which is instructed unto the kingdom of heaven is like unto a man that is an householder, which bringeth forth out of his treasure things new and old (Matthew 13:52, KJV).' This also was before the New Testament was written. However, the Lord Jesus Christ clearly taught that, in order to understand the Kingdom of Heaven, we must get our information from both the Old and New Testaments.
'Open thou mine eyes, that I may behold wondrous things out of thy law (Psalm 119:18, KJV).' Christians are not commanded to 'keep' the law. We can't do it, anyway, since there is no Temple. However, we can still learn from it.
'Wherefore the law was our schoolmaster to bring us unto Christ, that we might be justified by faith (Galatians 3:24, KJV).' It is necessary to use the Law (specifically, the Ten Commandments) to prepare people to receive the Gospel. (Look up 'Hell's Best-Kept Secret,' by Ray Comfort.)
Above all, if we want to learn about Jesus Himself, we must study the Old Testament. 'And he said unto them, These are the words which I spake unto you, while I was yet with you, that all things must be fulfilled, which were written in the law of Moses, and in the prophets, and in the psalms, concerning me (Luke 24:44, KJV).' For example, did you know that Jesus was ugly? 'For he shall grow up before him as a tender plant, and as a root out of a dry ground: he hath no form nor comeliness; and when we shall see him, there is no beauty that we should desire him (Isaiah 53:2, KJV).' Jesus did not 'look' like the way people assumed a prophet should 'look' like. After all, Jesus was a carpenter by trade. He had scratches, cuts, scars and callouses on his hands, from doing woodwork with no power tools. He was so ordinary-looking, the Pharisees couldn't even pick him out of a crowd (John 7:11, KJV). Judas had to point him out (Matthew 26:48, Mark 14:44, KJV). Jesus did not look like some blonde-haired hippie, as he is depicted on magazine covers every Easter!
Above all, the Lord Jesus Christ commanded, 'Go ye into all the world, and preach the gospel to every creature (Mark 16:15, KJV).' The Gospel is the forgiveness of sins, by the death, burial and resurrection of the Lord Jesus Christ (1st Corinthians 15:1-11, KJV). This is known as 'soul winning.' How do we do it? 'The fruit of the righteous is a tree of life; and he that winneth souls is wise (Proverbs 11:30, KJV).' That is, we must have Godly wisdom in order to lead people to Jesus. We get it from studying out the topic of wisdom in every book of the Bible, especially the 'Wisdom Books (Job, Psalms, Proverbs, Ecclesiastes)'. If we fail to study those books, we cannot expect any good. 'Then shall they call upon me, but I will not answer; they shall seek me early, but they shall not find me: for that they hated knowledge, and did not choose the fear of the Lord (Proverbs 1:28-29, KJV).' That, by the way, is the real reason why we see so much chaos, anger and anarchy in the U.S. Americans fill themselves with foolishness (TV, movies, best-selling novels, popular music, which promote sin), but refuse the wisdom of God. We must reject the world's wickedness, and study the entire Bible, to get that wisdom.
'And they that be wise shall shine as the brightness of the firmament; and they that turn many to righteousness as the stars for ever and ever (Daniel 12:3, KJV).'
That's why we must study the entire Bible, all 66 books. Most importantly, it must be the King James Version, since that is the only English translation that is 100% complete and accurate. Every other English translation since then is wrong. "