Sermon Synopsis
This sermon on Hebrews 3:7–19 warns against the danger of hardening the heart through unbelief, using Israel’s wilderness failure as a sobering illustration. The central issue is not merely disobedience, but unbelief that leads to departing from the living God. Believers are called to respond urgently “today,” to encourage one another daily, and to guard against the deceitfulness of sin. The message urges both professing Christians to truly commit to Christ and believers to actively care for one another’s spiritual well-being.
Please note: This transcript is provided as close to verbatim record of the sermon.
Sermon on Hebrews 3:7–19
“Today, If You Hear His Voice”
Introduction
Good morning, brothers and sisters in Christ. Thank you for your prayers and WhatsApp messages.
I would also like to give credit to the brothers in this WhatsApp group—the speakers who have contributed to this series on Hebrews, from chapter 1 until today. I am thankful for the constructive feedback and discussions we have had, both before and after the messages. They have given encouragement as well as constructive criticism. So, I expect some constructive criticism after this message as well.
This morning, we will be dealing with Hebrews 3:7–19.
In this passage, the author issues his second warning to nominal Jewish Christians—those who profess to be believers and followers of Jesus Christ but have not made a commitment to accept Him as their personal Savior and Lord.
The first warning, found in Hebrews 2:1–4, concerns drifting away from the message of Christ. In today’s passage, the warning is about departing from the living God.
Let us now read the passage.
Scripture Reading: Hebrews 3:7–19 (NKJV)
“Therefore, as the Holy Spirit says:
‘Today, if you will hear His voice,
Do not harden your hearts as in the rebellion,
In the day of trial in the wilderness,
Where your fathers tested Me, tried Me,
And saw My works forty years.
Therefore I was angry with that generation,
And said, “They always go astray in their heart,
And they have not known My ways.”
So I swore in My wrath,
“They shall not enter My rest.”’
Beware, brethren, lest there be in any of you an evil heart of unbelief in departing from the living God;
but exhort one another daily, while it is called ‘Today,’ lest any of you be hardened through the deceitfulness of sin.
For we have become partakers of Christ if we hold the beginning of our confidence steadfast to the end,
while it is said:
‘Today, if you will hear His voice,
Do not harden your hearts as in the rebellion.’
For who, having heard, rebelled? Indeed, was it not all who came out of Egypt, led by Moses?
Now with whom was He angry forty years? Was it not with those who sinned, whose corpses fell in the wilderness?
And to whom did He swear that they would not enter His rest, but to those who did not obey?
So we see that they could not enter in because of unbelief.”
Surely God will bless the public reading of His precious Word.
Overview of the Passage
In today’s passage, the sin highlighted is rebellion, or the hardening of the heart, which leads to departing from the living God. Previously, we saw the danger of drifting away; here, we see the danger of falling away.
Part of this text is taken from Psalm 95 (verses 7–11), which is almost identical.
The author uses this as further proof that the Son is superior to Moses. After all, Moses was not able to lead his generation into God’s rest in Canaan. In fact, Moses himself did not enter the land.
Outline of the Passage
I have divided the passage into three sections:
Verse 7 begins: “Therefore, as the Holy Spirit says…”
This Old Testament quotation from Psalm 95 shows that Scripture is truly the Word of God, spoken by the Holy Spirit.
The word “therefore” connects this passage to what has already been said:
If the Son is greater than Moses, then we must hear His voice.
“Today” — A Word of Urgency
The word “today” appears repeatedly (vv. 7, 13, 15). It speaks of urgency—not merely a 24-hour period, but this very moment.
Do not delay. Do not respond as Israel did.
Warning: Do Not Harden Your Hearts
We are warned: “Do not harden your hearts.”
Today is the day of salvation.
Two Illustrations from Israel’s History
(1) Corporate Disobedience – Early Wilderness (Exodus 15–17)
After crossing the Red Sea, Israel praised God. But soon:
Despite God’s provision, they grumbled repeatedly.
God asked: “How long do you refuse to keep My commandments?”
The answer: 40 years of wandering.
(2) Individual Disobedience – Moses at Kadesh (End of 40 Years)
After 40 years, at Kadesh:
Though water came out, Moses disobeyed.
God said, “You did not believe Me.”
As a result, Moses and Aaron did not enter the Promised Land.
Verdict (vv. 10–11)
God was:
Why? Because of:
So God swore: they would not enter His rest.
We are warned to guard against an evil heart of unbelief.
The Antidote: Mutual Encouragement
Verse 13: “Exhort one another daily…”
The word “exhort” means to come alongside and help.
We are responsible for one another’s spiritual well-being.
Sin is deceitful. Hardened hearts do not see clearly.
So what we cannot see in ourselves, others must help us see.
Marks of True Believers
True believers:
Those drifting must be warned before their hearts harden.
Three Questions (vv. 16–18)
God keeps His word—both in blessing and in discipline.
Verse 19 concludes:
They could not enter because of unbelief.
Despite seeing God’s works:
The root problem was unbelief.
Understanding “Rest”
The Bible speaks of several kinds of rest:
Application
To Professing Christians
Some attend church and may even be baptized, but have not committed their lives to Christ.
Today is the day of salvation. Do not harden your hearts.
To Believers
We are our brother’s and sister’s keeper.
Every believer has responsibility for the spiritual well-being of others.
Personal Testimony
The fact that I am still here, worshipping in this assembly, is a testimony of encouragement from brothers and sisters.
Through different phases of life—working life, NS, marriage, raising children, and even now in old age—I have been encouraged by fellow believers.
We pray for one another. We care for one another.
Sometimes when people ask, “How are you?” I say, “Okay.” But inside, I begin to reflect:
Such questions help us examine our lives.
Some brothers and sisters even ask directly, “How is your spiritual life?” That takes courage—but it is good. It is one reason I remain in this assembly, continuing to serve and grow.
Conclusion Prayer
Heavenly Father,
We thank You for this time to gather, to worship You, and to meditate on Your Word.
Help us, as an assembly, to encourage one another in our faith and to look out for each other as we grow as the body of Christ.
We pray for the activities that follow, that You would continue to bless and guide us.
We give You thanks.
In the name of our Lord and Savior Jesus Christ, Amen.
Messages: 17
