When Thou Passest Through the Waters: The Promise of Isaiah 43:2 (Santamaria)

When Thou Passest Through the Waters: The Promise of Isaiah 43:2

“When thou passest through the waters, I will be with thee; and through the rivers, they shall not overflow thee: when thou walkest through the fire, thou shalt not be burned; neither shall the flame kindle upon thee.”
—Isaiah 43:2

There are promises in Scripture that comfort us because they tell us that trouble will end. Isaiah 43:2 is different. It comforts us by telling us that God will be with His people while the trouble is still there.

The verse does not say, “If thou passest through the waters.” It says, “When thou passest through the waters.”

That single word destroys a great deal of shallow religious thinking.

God does not promise His people exemption from suffering. He does not tell Israel that because they belong to Him they will never see deep water, raging rivers, or consuming fire. On the contrary, He speaks as though these things are to be expected. The waters will come. The rivers will rise. The fire will burn.

But something greater than the trial is promised:

“I will be with thee.”

That is the heart of Isaiah 43:2.

The Context of the Promise

Isaiah 43 does not begin with man’s strength. It begins with God’s ownership.

“But now thus saith the LORD that created thee, O Jacob, and he that formed thee, O Israel, Fear not: for I have redeemed thee, I have called thee by thy name; thou art mine.” —Isaiah 43:1

Before God speaks about the water, He speaks about redemption.

Before He speaks about the river, He speaks about belonging.

Before He speaks about the fire, He reminds His people who created them.

“Thou art mine.”

That is the foundation of everything that follows.

The promise of verse 2 is not a vague assurance offered indiscriminately to humanity. It is covenant language addressed to the people whom God declares to be His own. Israel belonged to Him because He had formed, called, and redeemed them.

The order matters.

God does not say, “Survive the river, and then you will be mine.”

He says, in effect, “You are mine; therefore when you enter the river, I will be with you.”

Grace precedes the trial.

Ownership precedes endurance.

Redemption precedes the journey.

“When Thou Passest Through the Waters”

Water is one of Scripture’s great images of danger.

Israel knew what it meant to stand before waters that could not humanly be crossed. At the Red Sea, the people had Egypt behind them and the sea before them. Humanly speaking, there was no escape.

But the sea that appeared to be the place of Israel’s destruction became the place of Israel’s deliverance.

“The children of Israel went into the midst of the sea upon the dry ground.” —Exodus 14:22

God did not eliminate the sea.

He made a way through it.

That distinction is essential.

We often pray for God to remove the thing before us. Sometimes He does. But Scripture repeatedly teaches something more profound: God may choose not to remove the obstacle. Instead, He brings His people through it.

There are experiences in life that cannot be walked around.

They must be walked through.

Bereavement must sometimes be walked through.

Disappointment must be walked through.

Betrayal must be walked through.

Loneliness must be walked through.

Weakness must be walked through.

The decline of the body must eventually be walked through.

Death itself, unless the Lord comes first, must be walked through.

But the believer never walks through these things alone.

“When thou passest through the waters, I will be with thee.”

God does not merely stand on the opposite shore and call us forward.

He enters the waters with us.

“Through the Rivers, They Shall Not Overflow Thee”

A river is more dangerous than still water because it moves.

Its current presses against the traveler. It attempts to sweep him away.

That image perfectly describes certain seasons of life. Trouble sometimes arrives not as a single event but as a current.

One difficulty follows another.

One loss is followed by another.

One uncertainty produces another.

The believer may feel as though the current is becoming too strong.

Isaiah does not say that the river will be shallow.

He says:

“They shall not overflow thee.”

The promise is not that the believer will never feel the force of the river. The promise is that the river will not finally carry away the one whom God has determined to preserve.

This is the language of divine keeping.

The child of God may be shaken without being abandoned.

He may be cast down without being destroyed.

He may tremble without being lost.

The river has boundaries that God Himself has established.

This is why Paul could later write:

“We are troubled on every side, yet not distressed; we are perplexed, but not in despair; persecuted, but not forsaken; cast down, but not destroyed.” —2 Corinthians 4:8–9

Notice how realistic Christianity is.

“Troubled.”

“Perplexed.”

“Persecuted.”

“Cast down.”

Those are not the words of a religion pretending suffering does not exist.

Yet every statement is followed by a limitation.

Not distressed beyond recovery.

Not in despair.

Not forsaken.

Not destroyed.

The river may rise.

But it cannot rise beyond God’s decree.

“When Thou Walkest Through the Fire”

Fire is more severe imagery still.

Water may overwhelm.

Fire consumes.

Yet God says:

“When thou walkest through the fire, thou shalt not be burned.”

Israel’s history gives us an unforgettable picture of this truth in Daniel 3.

Shadrach, Meshach, and Abednego were cast into Nebuchadnezzar’s furnace because they refused to bow before the king’s image.

God could have prevented them from being thrown into the furnace.

He did not.

God could have extinguished the furnace.

He did not.

Instead, the king looked into the fire and saw something astonishing:

“Lo, I see four men loose, walking in the midst of the fire, and they have no hurt.” —Daniel 3:25

The miracle was not merely that the three Hebrews survived.

The astonishing thing was that they were not alone.

There was another with them in the furnace.

That is Isaiah 43:2 made visible.

“I will be with thee.”

The fire did not prove that God had abandoned them.

The presence of God was revealed in the fire.

This is a truth modern Christianity desperately needs to recover. We are often tempted to measure God’s favor by the absence of difficulty. When circumstances become painful, we ask whether God has left us.

Isaiah teaches the opposite.

The furnace may become the very place where the presence of God is most clearly known.

The Verse Does Not Promise a Life Without Pain

We should be careful not to turn Isaiah 43:2 into a sentimental promise that nothing terrible will ever happen to believers.

The Bible will not permit that interpretation.

The prophets suffered.

The apostles suffered.

The early church suffered.

Paul was beaten, imprisoned, shipwrecked, rejected, and eventually faced death.

Christ Himself was a man of sorrows and acquainted with grief.

Therefore, “thou shalt not be burned” cannot mean that the believer will never experience physical suffering or death.

It means that the trial cannot accomplish the ultimate destruction of those whom God has redeemed.

Fire may touch the body.

It cannot consume the inheritance.

Men may kill the body.

They cannot sever the believer from Christ.

Paul states the truth magnificently:

“For I am persuaded, that neither death, nor life, nor angels, nor principalities, nor powers, nor things present, nor things to come,

Nor height, nor depth, nor any other creature, shall be able to separate us from the love of God, which is in Christ Jesus our Lord.”

—Romans 8:38–39

That is the New Testament echo of Isaiah 43.

The believer’s security is not found in avoiding trouble.

It is found in belonging to God.

“I Will Be With Thee”

Here is the greatest promise in the verse.

Not:

I will explain everything to thee.

Not:

I will immediately remove everything from thee.

Not:

I will tell thee why this happened.

Not:

I will make the river shallow.

Not:

I will extinguish every furnace.

But:

“I will be with thee.”

Sometimes God gives explanations.

Sometimes He gives deliverance.

Sometimes He changes circumstances.

But the promise of His presence is deeper than all of these.

There are questions we may carry for years.

There are providences we may never understand in this life.

There are graves beside which no theological formula can remove the pain.

There are losses that permanently alter the landscape of our earthly lives.

But the Christian hope is not built upon understanding every providence.

It rests upon knowing the God of providence.

David understood this:

“Yea, though I walk through the valley of the shadow of death, I will fear no evil.”

Why?

Not because there is no valley.

Not because there is no shadow.

Not because there is no death.

“But thou art with me.” —Psalm 23:4

Isaiah says:

“I will be with thee.”

David says:

“Thou art with me.”

That is faith speaking back to the promise.

Through, Not There Forever

There is also a small but powerful word repeated in Isaiah 43:2:

“Through.”

“Through the waters.”

“Through the rivers.”

“Through the fire.”

God does not describe His people as permanently imprisoned in these things.

They pass through them.

The river is not home.

The furnace is not the destination.

The valley is not the final country.

Affliction has a boundary.

The believer may not know where that boundary lies, but God does.

Israel went through the sea and came out on the other side.

The Hebrews walked in the furnace and came out.

Job sat among the ashes, but the ashes were not the final chapter.

Joseph entered the pit, then the prison, but neither became his permanent dwelling place.

Christ entered death itself, but the grave could not hold Him.

And because Christ lives, the final enemy of the believer has already been defeated.

Even death becomes something through which the redeemed pass.

The God Who Goes With His People

Isaiah 43:2 does not glorify suffering.

It glorifies the God who remains faithful in suffering.

The waters may be frightening.

The rivers may be strong.

The fire may be hot.

But none of them is sovereign.

God is sovereign.

The trial does not own the believer.

God does.

The river does not determine the destination.

God does.

The furnace does not pronounce the final verdict.

God does.

And God has already said:

“Fear not: for I have redeemed thee, I have called thee by thy name; thou art mine.”

Therefore, child of God, do not interpret the presence of deep water as evidence of the absence of God.

Do not interpret the rising river as evidence that His promise has failed.

Do not interpret the heat of the furnace as proof that He has forgotten you.

The very verse that promises His presence assumes the existence of the trial.

“When thou passest through the waters, I will be with thee.”

There will be waters.

There will be rivers.

There will be fire.

But there will also be God.

And when everything else has passed away, He will still be there.