The Authority of the Word

“This Book of the Law shall not depart from your mouth, but you shall meditate in it day and night, that you may observe to do according to all that is written in it. For then you will make your way prosperous, and then you will have good success.”

Joshua 1:8 (NKJV)

There is no substitute for the Word of God.

We can be genuinely thankful for sermons, books, podcasts, worship albums, prophetic encouragement and good Christian teaching. God uses all of them. But none of them carries the same authority as Scripture, and the moment we start treating them as though they do, we are in trouble.

Everything else must be tested by the Bible. Not the other way round.

It is worth remembering what it cost to put an English Bible in our hands. William Tyndale translated the New Testament from Greek so that, as he told one clergyman who opposed him, a boy driving a plough would know more of the Scripture than he did. He worked in hiding, copies of his translation were burned at St Paul’s, and in 1536 he was strangled and burned near Brussels. Many of us own several Bibles and open none of them in a week. He gave his life so that we could read one.

Joshua is told, “This Book of the Law shall not depart from your mouth, but you shall meditate in it day and night, that you may observe to do according to all that is written in it. For then you will make your way prosperous, and then you will have good success.”

Look at the setting. Joshua is taking over from Moses with an impossible job ahead of him. God does not give him a strategy for the military campaign. He gives him a book, and tells him to keep it in his mouth, in his mind, and in his conduct.

Now notice the three movements in the verse, because they are a complete method.

“Shall not depart from your mouth.” Speaking it. Saying it aloud, rehearsing it, repeating it. In an oral culture this was how you internalised a text, and it still works.

“Meditate in it day and night.” Biblical meditation is the opposite of what the word usually means today. It is not emptying the mind. It is filling the mind with truth and turning it over. The Hebrew word carries the sense of muttering, murmuring, chewing something over. Psalm 1 uses the same idea, and it is the picture of a cow chewing the cud: taking it back, working it again, extracting everything from it.

“That you may observe to do.” Here is the destination. The whole point of the speaking and the meditating is doing. Knowledge is not the goal; obedience is.

That third movement is where most of us stall. Bible knowledge without obedience can make us informed without making us transformed. James warns about hearing and not doing, and calls it self-deception. It is entirely possible to know a great deal about Scripture and to be no more like Jesus than you were five years ago.

Look carefully at the promise at the end, because it is one of the most misquoted lines in the Old Testament.

“Then you will make your way prosperous, and then you will have good success.” This is not a formula for financial gain or career advancement. Read it in context. Joshua’s “success” is the fulfilment of a specific commission: leading Israel into the land God promised. The prosperity in view is covenant faithfulness producing the outcome God has purposed, not personal affluence.

Anyone who uses this verse to promise you money for meditating on Scripture has removed it from its setting. The genuine promise is better: a life aligned with God’s Word will accomplish what God intends, and that will hold when a bank balance will not.

Now, the deeper issue underneath all of this is authority.

When culture says one thing and Scripture clearly says another, the believer has already decided where final authority belongs. That decision is made in advance, in calm weather, not in the moment when the cost becomes apparent.

Not in feelings, however strong. Feelings are real and God gave them, but they are not a reliable guide to truth. Jeremiah says the heart is deceitful above all things.

Not in popularity. Truth is not decided by majority, and the majority has been wrong about most important things for most of history.

Not even in tradition. Jesus rebuked the Pharisees for “making the word of God of no effect through your tradition” (Mark 7:13). Tradition has value; it is not the final court.

The final authority is God’s written Word. Paul says it plainly: “All Scripture is given by inspiration of God, and is profitable for doctrine, for reproof, for correction, for instruction in righteousness” (2 Timothy 3:16).

Build your convictions there, and build them before you need them.

Practically, that means three things. Read it regularly enough that you actually know what it says, because you cannot stand on what you have never read. Learn to read it in context, which we will come to tomorrow. And decide in advance that where Scripture is clear, that settles it, even when the cost is real.

Let me add the most important thing. The authority of Scripture is not the authority of a rulebook. Jesus said the Scriptures testify of Him. The Word has authority because it brings us to the living Word, the Son of God who died and rose. We submit to a book because we are submitting to a Person.

One more thing about meditation, because it is more accessible than people fear.

You already know how to meditate; you have simply been practising on the wrong material. Anyone who has lain awake turning a difficult conversation over, examining it from every angle, imagining what they should have said, has meditated intensively. Worry is meditation with the wrong subject.

So take that same capacity and point it at Scripture. Choose one verse. Read it aloud. Emphasise a different word each time. Ask what it assumes, what it promises, what it requires. Carry it into the day and return to it at lunchtime.

You are not learning a new skill. You are redirecting one you already have and use daily without noticing.

Do not build your life on whatever is loudest today. Build it on the Word that does not change, then have the courage to live what you believe.

Prayer

Father, thank You for giving me Your Word, and for the fact that it does not change with the mood of the age. Forgive me for the times I have known what it says and not done it. Teach me to meditate properly: to speak it, to turn it over, and then to obey it. Where culture, feelings, popularity or tradition are competing for the final say in my life, settle the question now. And keep me remembering that Scripture leads me to Christ Himself, not merely to a set of rules. Give me courage to live what I believe. In Jesus’ name, amen.

Declaration

Scripture is my final authority, not my feelings, not the culture, not tradition. I will know it, meditate on it, and do it.

Pastor Ras

All Nations Community Church

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