“Holy Scripture, the inspired Word (message) of the living God, may truly be described as God preaching… All that Bible writers tell us about God and man, God himself tells us, for the sacred text is not just man’s witness to God, but is also, and indeed primarily, God’s own witness to himself, given us in this human form. Everything in Scripture teaches us something of the Father’s plan, something of the ministry and majesty of the Son as fulfiller of it, and something too about the gift and glory of eternal life, and the way to set forth God’s praise. Furthermore, it teaches it as from God himself.”
J.I. Packer, Engaging the Written Word of God, 310
The book I recommend to better understand how to read the Bible is Reading the Bible Supernaturally, by John Piper.