What Does Deuteronomy 17:18-20 Mean?
The law in Deuteronomy 17:18-20 defines what a king of Israel must do when he takes the throne: he must write out a copy of God’s law, approved by the Levitical priests. This scroll was to stay with him always, and he was to read it every day so he would learn to fear God, obey His commands, and not become proud or lead the people astray. It was a daily reminder that even the king was under God’s authority.
Deuteronomy 17:18-20
"And when he sits on the throne of his kingdom, he shall write for himself in a book a copy of this law, approved by the Levitical priests." And it shall be with him, and he shall read in it all the days of his life, that he may learn to fear the Lord his God by keeping all the words of this law and these statutes, and doing them, that his heart may not be lifted up above his brothers, and that he may not turn aside from the commandment, either to the right hand or to the left, so that he may continue long in his kingdom, he and his children, in Israel.
Key Facts
Book
Author
Moses
Genre
Law
Date
Approximately 1400 BC
Key Themes
Key Takeaways
- Even leaders must humbly obey God's Word daily.
- True authority comes from submission to divine law.
- God desires heart transformation, not just rule-following.
Context of Deuteronomy 17:18-20
This law comes near the end of a section in Deuteronomy that sets up rules for Israel’s future leaders, showing how God wants His people to live once they’re settled in the Promised Land.
Back then, other nations’ kings often made laws to serve themselves, but Israel’s king was to be different - he had to personally write out a copy of God’s law, called the mishneh, which means a duplicate or second witness to the original. This copy had to be checked and approved by the Levitical priests, ensuring it was accurate and faithful to God’s commands. By reading it every day, the king would stay humble, remember he served under God, and not drift into pride or disobedience.
The rule aimed to shape a heart that fears God, not merely to read, as later echoed in Jeremiah 32:40 where God promises a new covenant with His law written on hearts instead of scrolls.
Why the King Must Write and Read the Law
This command was meant to check power, not merely to demand obedience, because even God’s chosen leader can succumb to pride and disobedience.
In the ancient Near East, kings often claimed divine status or ruled by personal decree, but Israel’s king was to be different: he had to personally write out the entire law by hand, a slow and reflective act that forced him to internalize every command. This copy, called the mishneh, served as a second witness to the original scroll kept by the priests, ensuring accuracy and accountability. Unlike the self-serving laws of Egypt or Assyria, Israel’s king was to be under the law, not above it. By reading it all the days of his life, he would stay grounded in God’s authority, not his own.
The heart of this law is humility - specifically, guarding against the phrase 'his heart may not be lifted up above his brothers,' which shows God’s concern for justice and unity among His people. This aimed to preserve the covenant relationship, not merely to avoid arrogance, ensuring that all Israel, including the king, stood equal before God. Later, in 2 Kings 22, we see King Josiah’s reaction when the lost Book of the Law is found: he tears his clothes and repents, showing how far the kings had drifted from this standard - proof that skipping daily reading led to spiritual decline.
The king’s daily reading was a spiritual safeguard against the corrupting power of the throne.
The daily discipline of reading Scripture aimed to shape the king’s character, not merely to inform his mind. This points to Jeremiah 32:40, where God says, 'I will put my law in their minds, and write it on their hearts,' showing the goal has always been heart transformation, not merely external rule.
How This Law Points to Jesus
This law about the king writing and reading God’s Word finds its true fulfillment in Jesus, the perfect King who not only obeyed the law completely but also embodied it in His life.
Jesus, unlike any earthly king, lived in constant obedience to the Father, never lifting His heart in pride, and He fulfilled the law by loving God fully and serving others with humility. Now, because of Jesus, we are not saved by following such laws, but by trusting in His perfect life and sacrifice, as Paul says in Romans 10:4: 'Christ is the end of the law for righteousness to everyone who believes.'
This means the daily devotion the king was commanded to have is now transformed into our relationship with Christ, who writes His law on our hearts by the Spirit, leading us into a life of humble faith and obedience.
The King's Law and the Heart of the Covenant
This command to the king ties directly into the bigger picture of blessings and curses laid out in Deuteronomy 28, where obedience leads to life and pride leads to exile.
When Solomon, though wise, multiplied horses, wives, and wealth - directly breaking the king’s law in Deuteronomy 17 - he showed how quickly the heart can drift, leading Israel into idolatry and setting the stage for division. The failure of kings like Solomon highlights the need for the promised king in Jeremiah 23:5-6, who would reign with justice and righteousness, and whose very name would be 'The Lord our righteousness.'
The law was never just a rulebook, but a mirror showing the heart's posture before God.
The takeaway: God wants leaders and everyone to let His Word shape our hearts so humility and faith define us, not just our actions.
Application
How This Changes Everything: Real Life Impact
I once knew a man who led a big team at work - respected, successful, and always in control. But over time, he stopped making space for anything that challenged him, including time with God’s Word. He didn’t mean to become prideful, but without daily grounding in truth, small compromises grew into distance from God and tension with others. It wasn’t until he hit a breaking point that he remembered this passage: even the king had to read God’s law every day. So he started small - five minutes each morning with a Bible app, asking God to show him where his heart was drifting. It wasn’t about checking a box. It became a lifeline. That daily rhythm didn’t make him perfect, but it kept him humble, teachable, and connected to the One who truly leads with love and justice.
Personal Reflection
- Where in my life do I feel tempted to 'be lifted up above my brothers' - acting like I don’t need God’s guidance or others’ input?
- If the king had to read God’s Word daily to stay grounded, what would change if I made Scripture a non-negotiable part of my routine?
- How can I tell if I’m treating God’s commands as rules to manage, or as wisdom to shape my heart?
A Challenge For You
Pick one time each day - morning coffee, lunch break, or before bed - and spend 5-10 minutes reading Deuteronomy slowly, especially chapters 17 - 18. As you read, ask God to show you one way to live with more humility and obedience today. Keep a small journal or note on your phone to track what you’re learning and how your heart responds.
A Prayer of Response
God, thank you that your Word is for me, not only for experts or leaders. Help me not to drift into pride or busyness that pushes you aside. Teach me to fear you by living in your truth every day. Write your law on my heart, not only in my head, so I can walk in humility, love, and obedience, following Jesus. Amen.
Related Scriptures & Concepts
Immediate Context
Deuteronomy 17:14-17
These verses set up the conditions for appointing a king, showing that the command to write the law follows divine restrictions on power.
Deuteronomy 17:21
This verse continues the theme of covenant obedience, linking the king's faithfulness to Israel's lasting inheritance in the land.
Connections Across Scripture
Psalm 1:2
The blessed person delights in God's law and meditates on it day and night, echoing the king's daily reading duty.
Jeremiah 23:5-6
God promises a righteous King who will reign with justice, pointing to Christ as the perfect fulfillment of Deuteronomy's ideal king.
Hebrews 10:16
Quoting Jeremiah, this verse shows how God now writes His law on hearts, transforming external commands into internal devotion.