What does "nothing unclean" mean?
What does "nothing unclean" teach about God's standards for entering heaven?

Setting the Scene—Revelation 21:27

“But nothing unclean will ever enter it, nor anyone who practices an abomination or a lie; only those whose names are written in the Lamb’s Book of Life.”


God’s Standard: Absolute Purity

• Heaven is God’s dwelling; His holiness defines its atmosphere (Habakkuk 1:13).

• “Nothing unclean” reveals a zero‐tolerance policy toward sin—no moral blemish slips past the gate.

• Other passages underscore the same requirement:

Hebrews 12:14: “Without holiness no one will see the Lord.”

Isaiah 35:8 pictures “the Highway of Holiness” where “unclean” travelers are absent.

1 Peter 1:15-16: “Be holy in all you do, for it is written: ‘Be holy, because I am holy.’”


Why We Fall Short

Romans 3:23: “All have sinned and fall short of the glory of God.”

• Sin is not graded on a curve; any stain disqualifies (James 2:10).

Ephesians 5:3-5 lists sins that bar entrance and concludes, “No immoral, impure, or greedy person…has an inheritance in the kingdom of Christ and of God.”


The Only Way to Meet the Standard

• We cannot cleanse ourselves (Titus 3:5).

• God provides the cleansing:

2 Corinthians 5:21: “God made Him who knew no sin to be sin for us, so that in Him we might become the righteousness of God.”

Hebrews 10:14: “By one sacrifice He has perfected for all time those who are being sanctified.”

• Entrance hinges on the Lamb’s Book of Life—names recorded because of faith in Christ (John 14:6; Acts 4:12).

Steps Scripture lays out:

1. Admit one’s uncleanness (Psalm 51:3).

2. Trust Christ’s atoning death and resurrection (Romans 10:9-10).

3. Receive the imputed righteousness He supplies (Philippians 3:9).


Living in Light of the Standard Now

• Justification secures our status; sanctification shapes our walk.

• The Spirit applies cleansing daily (1 John 1:7).

• Practical responses:

– Pursue purity of heart (Matthew 5:8).

– Confess and forsake sin quickly (1 John 1:9).

– Cultivate habits that reflect heavenly citizenship (Philippians 1:27).

• “Everyone who has this hope in Him purifies himself, just as He is pure.” (1 John 3:3)


Hope and Assurance

Revelation 21:3-4 promises a sinless, tearless eternity—possible because Christ removes all uncleanness.

2 Peter 3:13: “We are looking forward to a new heaven and a new earth, where righteousness dwells.”

• Confidence rests not in personal effort but in the finished work of the Lamb whose blood makes us clean forever (Revelation 7:14).

How does Revelation 21:27 emphasize the importance of holiness in our lives?
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