“While it is said, ‘Today if you hear His voice, Do not harden your hearts, as when they provoked Me.’” — Hebrews 3:15, NASB
There is a word in Hebrews 3:15 that ought to stop every one of us in our tracks.
That word is “Today.”
Not someday. Not later. Not when life settles down. Not when we feel more ready. Not when we have everything figured out. The Holy Spirit says, “Today if you hear His voice, do not harden your hearts.”
God speaks, man hears, and then man must decide what he will do with what he has heard.
That is a serious thing.
God Still Speaks Through His Word
When Hebrews 3:15 says, “if you hear His voice,” it is not talking about some mysterious whisper in the night. God speaks to us through His revealed word.
The Scriptures are not merely old religious writings. They are the word of God. Through them, God warns,teaches, corrects, comforts, and calls.
He tells us who we are.
He tells us what sin has done.
He tells us who Jesus is.
He tells us what Christ has done for us.
He tells us how to be saved.
He tells us how to live.
The question is not whether God has spoken. The question is whether we are listening.
Many people want God to speak, but they do not want God to command. They want comfort without correction. They want promises without repentance. They want heaven without surrender.
But the voice of God is not background noise. It is not advice to be considered lightly. When God speaks, Hisword demands a response.
The Danger of a Hardened Heart
Hebrews 3:15 warns us, “Do not harden your hearts.”
A hard heart does not usually become hard all at once. It often happens slowly. A person hears the truth anddelays. Then he hears again and excuses himself. Then he hears again and becomes less moved by it.
What once troubledhim no longer bothers him.
What once convicted him now irritates him.
What once stirred his soul now seems easy to ignore.
That is the danger.
The more we resist the truth, the easier it becomes to resist it again.
A hardened heart is not always loud and rebellious. Sometimes it is polite. Sometimes it sits in a pew. Sometimes it nods at the sermon. Sometimes it says, “That was a good lesson,” and still walks away unchanged.
The warning is not only for the atheist, the skeptic, or the openly immoral. It is for anyone who hears God’s word and refuses to obey it.
Israel Heard — But Rebelled
Hebrews 3 points back to Israel in the wilderness. They had seen the power of God. They had been deliveredfrom Egypt. They had crossed the Red Sea. They had eaten manna from heaven. They had witnessed the care and patience of God again and again.
Yet many of them still rebelled.
Their problem was not a lack of evidence. Their problem was unbelief.
They heard God’s voice, but they hardened their hearts. They saw His works, but they did not trust Him. They received His blessings, but they would not submit to His will.
That is why Hebrews uses their example as a warning to us.
It is possible to be near the things of God and still be far from God. It is possible to know the stories, hear the sermons, sing the songs, and still resist the Lord.
The issue is not merely whether we have heard truth. The issue is whether truth has humbled us.
“Today” Is a Mercy
The word “Today” is not only a warning. It is also an expression of God’s mercy.
If God says “Today,” that means there is still opportunity. There is still time to listen. There is still time to repent. There is still time to obey the gospel. There is still time to come home.
But “today” also reminds us that time is limited.
Yesterday is gone.
Tomorrow is not promised.
Today is the moment we actually have.
So many people live as though they have a guaranteed future. They assume there will always be another sermon, another invitation, another chance, another quiet moment to get serious with God.
But the Bible never tells us to obey God tomorrow.
It says, “Today.”
Today, if you hear His voice.
What Is God Calling Us To Do?
God is not merely calling us to feel something. He is calling us to respond in faith and obedience.
The gospelis the good news that Jesus Christ died for our sins, was buried, and was raised from the dead. Through Him, we can be forgiven, reconciled to God, and given the hope of eternal life.
But the gospel must be obeyed.
The Lord calls us to believe in Christ, repent of our sins, confess Him as Lord, and be baptized into Christ forthe forgiveness of sins. This is not man’s plan. It is the response God has revealed in His word.
On the day of Pentecost, when the people were pierced to the heart, they asked, “Brethren, what shall we do?” Peter answered, “Repent, and each of you be baptized in the name of Jesus Christ for the forgiveness ofyour sins” (Acts 2:37–38).
They heard the voice of God through the preaching of the gospel. Then they had to decide.
Some received the word. Some obeyed. Some were added by the Lord to His church.
That same kind of decision stands before people today.
Do Not Delay Your Soul
One of Satan’s most effective words is not always “never.”
Sometimes it is “later.”
Later, I will obey.
Later, I will repent.
Later, I will come back to God.
Later, I will study.
Later, I will be baptized.
Later, I will make things right.
But delayed obedience can become disobedience. A postponed response can become a hardened heart.
Every time we say “not now” to God, we are training our heart to resist Him.
That is why Hebrews 3:15 presses upon us with such urgency. The verse does not say, “If you hear His voice, think about it for a while.” It says, “Do not harden your hearts.”
When God’s word convicts us, we should not push it away. When truth exposes us, we should not defend oursin. When the gospel calls us, we should not delay.
The Tender Heart
The opposite of a hard heart is a tender heart.
A tender heart trembles at God’s word.
A tender heart is willing to be corrected.
A tender heart says, “Lord, what do You want me to do?”
A tender heart does not argue with Scripture.
A tender heart does not make excuses.
A tender heart obeys.
That is the kind of heart God desires.
The question is not simply, “Have I heard Hebrews 3:15?” The question is, “What kind of heart do I have when I hear it?”
Am I soft toward God, or stubborn?
Am I listening, or merely hearing words?
Am I obeying, or delaying?
Am I drawing near, or drifting away?
Today Is the Day to Listen
There is something deeply personal about Hebrews 3:15.
It speaks to the person who knows what he ought to do but has not done it.
It speaks to the Christian who has grown careless.
It speaks to the one who has drifted from worship, prayer, holiness, and service.
It speaks to the sinner who has heard the gospel but has not obeyed it.
It speaks to all of us.
God is gracious, but He is not to be ignored. God is patient, but His patience should lead us to repentance, not presumption.
So hear the verse again:
“Today if you hear His voice, Do not harden your hearts.”
Today is the day to listen.
Today is the day to repent.
Today is the day to obey.
Today is the day to come back.
Today is the day to stop resisting the voice of God.
Because when God speaks, the safest thing a soul can do is listen.
And the wisest thing a soul can do is obey.
Garland Van Dyke
garland.churchofchrist@gmail.com
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www.matthewsstreetchurchofchrist.com