Be Strong to Keep the Law and Love the Lord
Israel must be strong in obedience and careful to love the Lord.
Scripture Text
23:6 Be very strong, then, so that you can keep and obey all that is written in the Book of the Law of Moses, not turning aside from it to the right or to the left.
23:7 So you are not to associate with these nations that remain among you. You must not call on the names of their gods or swear by them, and you must not serve them or bow down to them.
23:8 Instead, you shall hold fast to the Lord your God, as you have done to this day.
23:9 The Lord has driven out great and powerful nations before you, and to this day no one can stand against you.
23:10 One of you can put a thousand to flight, because the Lord your God fights for you, just as He promised.
23:11 Therefore watch yourselves carefully, that you love the Lord your God.
Anchor
Israel must be strong in obedience and careful to love the Lord.
Because the Lord has fought for Israel, covenant strength now means obedient loyalty and love rather than trust in military numbers or assimilation to rival worship.
Point of Contact
Move believers from complacent enjoyment of blessing into vigilant, Word-governed, wholehearted covenant faithfulness.
Rhythm
- Leadership Transition Joshua, near the end of his life, gathers Israel’s leaders for covenant exhortation.
- Faithfulness Remembered Joshua grounds Israel’s future obedience in what the Lord has already done and still promises to do.
- Law-Centered Courage Israel must be strong by obeying the Book of the Law without deviation.
- Separation from Idolatry Israel must refuse idolatrous association and hold fast to the Lord.
- Victory Reaffirmed The Lord’s fighting presence, not Israel’s strength, explains past and future victory.
- Love Commanded The heart of covenant perseverance is careful love for the Lord.
- Assimilation Warned Against Turning back to the nations will transform them from defeated enemies into covenant snares.
- Promise and Curse Held Together The same faithfulness that fulfilled every good promise will also bring every covenant warning if Israel turns to other gods.
Crucial Turning Point
Joshua gathers Israel’s leaders, reminds them that the Lord has fought for them, commands them to hold fast to the Lord and avoid the remaining nations, and warns that covenant unfaithfulness will bring loss of the land just as surely as God’s good promises have been fulfilled.
The chapter argues that the Lord’s faithfulness demands Israel’s persevering covenant loyalty. God’s fulfilled promises are not an excuse for complacency but the ground for obedient love. The God who surely gives blessing will also surely bring judgment if Israel abandons Him.
Theological logic
- The LORD has given Israel rest and victory
- Joshua’s death is near, so Israel must prepare for faithfulness beyond his leadership
- The LORD’s past victories prove His promise-keeping character
- Israel must respond by obeying the Book of the Law of Moses
- Remaining nations are dangerous if Israel clings to them rather than the LORD
- Victory continues only because the LORD fights for His people
- The central call is careful love for the LORD
- God’s good promises have all come to pass
- Therefore His covenant warnings will also come to pass if Israel turns to other gods
Watch Out
- Do not detach the command to be strong from the stated task of keeping the law.
- Do not reduce clinging to the Lord to a merely emotional experience.
- Do not read the one-to-a-thousand image as a mathematical promise for modern battles.
- Do not make the worship prohibition a license to mistreat neighboring people.
- Do not present obedience as a way to purchase salvation through Christ.
Invitation Arc
- Examine loyalties in light of the passage's concrete commands.
- Avoid using a victory image to claim personal invincibility.
- Teach love and obedience together in their covenant context.
- Keep gospel grace clear when applying the exhortation.
- Identify what Joshua means by strength before applying it.
- Resist triumphalist uses of verse 10.
- Rehearse specific ways the Lord has kept His promises
- Submit decisions and desires to the written Word of God
- Identify influences that pull the heart toward rival loyalties
- Practice holding fast to the Lord through prayer, worship, obedience, and remembrance
- Treat warnings in Scripture as mercy, not negativity
- Prepare future leaders and generations to remain faithful after you
- Rest in Christ’s faithfulness while pursuing faithful obedience
Formation Aim
A steadfast, watchful, Scripture-ruled people who love the Lord carefully and refuse idolatrous compromise.
Canonical Thread
- Joshua 1 Echoed at the End: Joshua’s command to be strong and obey the Law echoes the Lord’s original charge to Joshua, now applied to Israel’s leaders.
- Deuteronomic Covenant Exhortation: Joshua’s charge echoes Deuteronomy’s call to love the Lord, obey His commands, avoid idolatry, and remain faithful in the land.
- Promise Fulfillment Repeated: Joshua repeats the theme that not one of the Lord’s good promises has failed.
- Remaining Nations as Snares: Joshua’s warning anticipates the failure and compromise that unfold in Judges.
- Covenant Blessing and Curse: Joshua’s warning that disaster will come upon covenant violation reflects the blessings and curses of Deuteronomy.
- Christ Fulfills the Law and Bears the Curse: The New Testament teaches Christ's obedience and curse-bearing in its own setting; Joshua's farewell warnings remain direct words to Israel about life in the land.
Gospel Clarity
Joshua calls covenant Israel to obey the Law of Moses and love the Lord. The Christian gospel is not earned by perfect obedience to this speech; Jesus Christ died for sins and rose (1 Corinthians 15:3-4), and salvation is God's gift through faith (Ephesians 2:8-10). Grace calls for faithful love without confusing fruit with its saving ground.