God inspired the Word from Genesis to Revelation and there is unity in the message of salvation, by grace, through faith, in Christ. The Bible points us to Christ because all of God’s people have always looked to Christ (Luke 24:27; John 5:39). We are blessed because we have the finished Bible. The Bible was penned over a period of time, as God gave more light. The more light added to the unity of the whole. You can also study the Bible topically, since there is unity. You can learn the Bible as a whole, to see what God says about a topic to gain fuller understanding of God’s will in a particular area. The Bible wasn’t written as a systematic theology, where every truth is found in a certain chapter. There isn’t a “Trinity” chapter or a “family chapter” but the Bible teaches those truths throughout and we mine the depths of Scripture to learn God’s will for us.
There is a purpose to the Bible. Well, actually, more than one purpose. 2 Peter 1:3-4, “According as his divine power hath given unto us all things that pertain unto life and godliness, through the knowledge of him that hath called us to glory and virtue: Whereby are given unto us exceeding great and precious promises: that by these ye might be partakers of the divine nature, having escaped the corruption that is in the world through lust.” The Bible shows us the way of eternal life and how to live in this world. In the Word, we read the precious promises and what God forbids and commands of his people. It’s not up to the individual to find his own truth, but there can be more than one application of the truth. In the story of David and Goliath, we can see the glory of God in defeating the enemies of His people, the blessedness of faith in the Lord to deliver us, the need to live by faith, and our own need for a deliverer to take our place.
Psalm 119 is a song in the Bible, about the Bible. The Psalmist loves the Word of God and tells us what we ought to think about the Bible, how to deal with the Bible, and what to believe about the Bible (119:140). From this one song, you learn the Bible is true (119:151) and you can trust it (119:42) because it is stable and fixed (119:89) and perfect (119:96). Since it is fixed, it will fix you too (119:38). You’ll never be ashamed by believing the Bible (119:31). We learn from the Bible what is right (119:75) and then how to think rightly (119:66). God will teach you how He blesses and the way to happiness (119:1-2). A counselor to guide us (119:24) and it strengthens us when we are weak (119:28) and in this world of trial and tribulation, it gives hope (119:43). It’s sweet to the soul who loves the Lord (119:103).