“Let us draw near with a sincere heart in full assurance of faith, having our hearts sprinkled clean from an evil conscience and our bodies washed with pure water.”— Hebrews 10:22
One of the most encouraging phrases in the book of Hebrews is found in Hebrews 10:22:
“Let us draw near… in full assurance of faith.”
But what exactly is “full assurance of faith”?
Does it simply mean having strong faith?
Or does the Greek text reveal something deeper?
Even more importantly, does the grammar suggest that this assurance is the result of Christ’s finished work rather than something believers must strive to achieve?
The answer is yes.
When we examine the Greek carefully, we discover that the believer’s assurance is grounded not in the strength of his faith, but in the completeness of Christ’s sacrifice.
The Greek Text
Hebrews 10:22 reads:
προσερχώμεθα μετὰ ἀληθινῆς καρδίας ἐν πληροφορίᾳ πίστεως, ῥεραντισμένοι τὰς καρδίας ἀπὸ συνειδήσεως πονηρᾶς καὶ λελουμένοι τὸ σῶμα ὕδατι καθαρῷ
A very literal translation is:
“Let us draw near with a sincere heart, in full assurance of faith, having had our hearts sprinkled from an evil conscience and having had our bodies washed with pure water.”
Notice the flow of the sentence.
The author first gives the command:
Let us draw near.
Then he describes how we draw near:
- with a sincere heart,
- in full assurance of faith.
Finally, he explains why we can draw near this way:
- because our hearts have been sprinkled clean,
- and our bodies have been washed.
The grammar itself tells the story.
What Does “Full Assurance” Mean?
The Greek phrase is:
ἐν πληροφορίᾳ πίστεως
(en plērophoriā pisteōs)
The key word is:
πληροφορία
(plērophoria)
It comes from two Greek ideas:
- πλήρης (plērēs) meaning “full.”
- A verb related to φέρω (pherō), “to carry” or “to bring.”
The picture is something brought to complete fullness.
Greek lexicons define plērophoria as:
- full assurance,
- complete certainty,
- complete confidence,
- full conviction.
This word appears only four times in the New Testament, and every occurrence carries the idea of complete certainty rather than wishful thinking.
The author is not speaking about weak hope.
He is describing unwavering confidence.
Does It Mean Full Conviction?
Absolutely.
If we were expressing the same idea in modern English, we might translate it as:
- complete confidence,
- absolute certainty,
- full conviction,
- settled assurance.
This confidence is not arrogance.
It is confidence rooted in what Christ has accomplished.
The believer is invited to approach God without hesitation because Christ has already dealt with the obstacle that separated humanity from God.
What Is “Faith” Here?
The second word is:
πίστεως
(pisteōs)
This refers to faith, trust, or reliance.
Together, the phrase means:
“with complete confidence that faith brings.”
The emphasis is not simply believing harder.
The emphasis is confidence that rests upon the object of faith—Jesus Christ and His finished work.
The Grammar Reveals Something Beautiful
The most fascinating part of the verse comes next.
The author writes:
“having our hearts sprinkled clean from an evil conscience”
and
“our bodies washed with pure water.”
These two expressions are translated from two Greek participles:
ῥεραντισμένοι
(rherantismenoi)
and
λελουμένοι
(leloumenoi)
Both are perfect passive participles.
That matters enormously.
The Greek perfect tense describes:
A completed action with continuing results.
In other words, the author is describing something that has already happened and whose effects continue into the present.
The believer’s heart has already been sprinkled.
The believer’s body has already been washed.
These are not ongoing achievements.
They are completed realities.
Does the Cleansed Conscience Produce Assurance?
I believe the grammar strongly points in that direction.
Notice the flow of the sentence:
Christ has cleansed the heart.
↓
The conscience has been cleansed.
↓
Therefore believers draw near with full assurance.
The assurance does not arise from trying to convince ourselves that we are accepted.
The assurance flows from the fact that Christ has already made us acceptable.
Our confidence is grounded in what He has done.
What Is an “Evil Conscience”?
The Greek expression is:
ἀπὸ συνειδήσεως πονηρᾶς
Literally:
“from an evil conscience.”
Some translations say “guilty conscience.”
That certainly captures part of the meaning.
But Hebrews uses the word “conscience” in a much richer way.
Throughout the book, the conscience represents the inner awareness of standing guilty before God.
Under the Old Covenant, sacrifices could never fully quiet the conscience.
The worshiper always knew another sacrifice would be needed.
Earlier, the author writes:
“Otherwise, would they not have ceased to be offered, because the worshipers, having once been cleansed, would no longer have had consciousness of sins?”
— Hebrews 10:2
Later he says:
Christ’s blood cleanses:
“our conscience from dead works.”
The conscience is no longer burdened because Christ has completely dealt with sin.
The Finished-Work Perspective
Many Christians believe assurance comes after reaching a certain level of maturity.
They think:
If I pray enough…
If I obey enough…
If I become holy enough…
Then I will finally have assurance.
Hebrews teaches the opposite.
Assurance is not the reward for strong performance.
Assurance is the result of Christ’s finished work.
Because your conscience has been cleansed…
Because your heart has been sprinkled…
Because your body has been washed…
You may now draw near with complete confidence.
The order matters.
Finished work first.
Assurance second.
Drawing near third.
Religion often reverses that order.
Grace never does.
Living With Full Assurance
This changes the entire Christian life.
We no longer approach God wondering whether He will accept us.
We approach Him because Christ has already made us acceptable.
We no longer wonder whether enough has been done.
Jesus declared from the cross:
“It is finished.”
Hebrews explains what that means.
The believer has been cleansed.
The conscience has been purified.
The way into God’s presence has been opened.
The invitation is no longer:
Stay back until you become worthy.
The invitation is:
Draw near with full assurance.
The Heart of Hebrews 10:22
Hebrews 10:22 is one of the clearest invitations in Scripture to rest in the finished work of Christ. The Greek text shows that “full assurance of faith” is not confidence generated by human effort but confidence grounded in Christ’s completed sacrifice. Because our hearts have already been sprinkled clean from an accusing conscience and our bodies have been washed, we are free to draw near to God with complete confidence.
Our assurance is not found in the strength of our faith.
It is found in the greatness of our Savior.
The finished work of Christ gives us what religion never could:
A cleansed conscience.
A confident heart.
And unrestricted access to God.
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