If you truly study the Word of God, you will see that it still applies perfectly to this world. Some cultural issues have changed, but sin is still sin and separation from God is still separation from God. Sin is still at the heart of the human condition.
Some of the prophecies in the Bible are yet to be fulfilled. Since we can still expect to see them come to pass, then we should see the Bible as a living work. If you were to study the numerous prophecies recorded in the Bible that already have been perfectly fulfilled, you would have no choice but to give the Bible full authority. You can read about the prophetic work of Scripture in 2 Peter, chapter 1.
God gave us His Word so that we can understand Him and His ways and so that we can learn how to live.
“All scripture is given by inspiration of God, and is profitable for doctrine, for reproof, for correction, for instruction in righteousness: That the man of God may be perfect, thoroughly furnished unto all good works.” (2 Timothy 3:16-17)
Note what the Bible has to say about the value of Scripture, “… that the man of God may be perfect, thoroughly furnished unto all good works.” It is not enough to just “be” a Christian. God expects us to be busy serving Him and the Bible is an excellent resource with which to prepare and equip ourselves. This is an important thing to note. Out purpose in life is not to have fun, but to serve Jesus Christ, to worship Him, and to His work.
Before you pick up the Bible, pray each time that the Lord Jesus would speak to your heart. Pray that your reading of the Bible would be more than just reading. Pray for insight in how you may apply what you learn from the Bible. A day will come when we all stand before the Lord and give an account for what we have & have not done while alive on earth. Those who have Jesus in their hearts will be rewarded for how they have served God.
Is the Bible relevant to our lives today? You bet it is!