Deuteronomy is the heartbeat of the Old Testament and the constitution of Israel. It is a condensed form of the entire Bible, quoted 195 times in the New Testament.
The book of Deuteronomy is addressed to the Israel of God, a group of God's called out ones who have been convicted that the Law has not been done away.
Deuteronomy could be considered the New Testament of the Old Testament, serving as a commentary on the Ten Commandments. It gives vision for critical times.
In John 10, Jesus characterizes Himself as the 'Good Shepherd' who loves and cares for His sheep. This is shown in His providential leadership of His church.
Affliction is a necessary aspect of life, yielding strength of character, while ease and comfort weaken us. Christ was perfected as High Priest through suffering.