Hebrews 1-5:10
In many ways this book was written as a witness of Jesus Christ to the Jews, which proves from the Old Testament scriptures the superiority of Christ over all - greater than the prophets, than angels, than Moses, Abraham, and Joshua, Who’s priesthood is superior to Aaron’s, Who serves in a better Sanctuary, Who administers a better covenant, and Who’s sacrifice was infinitely superior to the blood of bulls and goats.
The authorship of this book is not known, and heavily debated. Many scholars believe it was written anonymously by the apostle Paul, and other scholars are divided on different alternatives, such as Luke, Barnabas, Apollos, etc…. In spite of this debate, there is no question that the book is Divinely inspired.
In chapter 1 Jesus is described as the radiance of God’s glory, Who holds all things together by the word of His power, and who made sacrifice for sins once and for all before sitting down at the right hand of the Father in heaven. He is shown to be superior to the angels through chapter 2.
In chapters 3-4 Christ is shown to be superior to both Moses and Joshua, and that God’s rest can be found in Jesus, even though Israel never successfully entered into the rest that was designed for them.
Jesus was also designated by His Father as a priest forever, after the order of Melchizedek, who was king of Salem and priest of God in the days of Abraham, who Abraham bowed down to, and gave tithes.