Compare Peter's and Isaiah's reactions.
Compare Peter's reaction in Luke 5:8 with Isaiah's in Isaiah 6:5.

Passage Snapshot

Luke 5:8: “When Simon Peter saw this, he fell at Jesus’ knees. ‘Go away from me, Lord,’ he said, ‘for I am a sinful man.’”

Isaiah 6:5: “Then I said: ‘Woe to me, for I am ruined! For I am a man of unclean lips, and I live among a people of unclean lips; and my eyes have seen the King, the LORD of Hosts.’”


Setting the Scene: Moments of Revelation

• Peter: A miraculous catch of fish reveals Jesus’ divine power on the shores of Galilee (Luke 5:1-7).

• Isaiah: A breathtaking vision of the Lord on His throne, surrounded by seraphim crying “Holy, holy, holy” (Isaiah 6:1-4).

• In both scenes, an ordinary man suddenly stands face-to-face with extraordinary holiness.


Immediate Responses: Falling Down Before Holiness

• Posture

– Peter “fell at Jesus’ knees.”

– Isaiah cries “Woe to me,” feeling undone.

• Emotion

– Overwhelming awe mixed with dread.

– Awareness that holiness exposes human sin (cf. Revelation 1:17; Exodus 3:6).


Confession of Sinfulness

• Peter: “I am a sinful man.”

• Isaiah: “I am a man of unclean lips…and I live among a people of unclean lips.”

• Key similarities

– Personal ownership of guilt.

– No excuses, no comparisons—just honest acknowledgment before God (Psalm 51:3-4).

• Key difference

– Isaiah also confesses corporate sin, sensing national unworthiness as well as personal.


Fear and Reverence: Why They Wanted Distance

• Sin separates; holiness highlights that gulf (Habakkuk 1:13).

• Peter asks Jesus to “go away”; Isaiah expects ruin.

• Both echo earlier reactions to God’s presence—e.g., Job 42:5-6; Judges 13:22.


God’s Gracious Answer

• Peter: “Do not be afraid” (Luke 5:10), words that calm his fear.

• Isaiah: A seraph touches his mouth with a coal—“Your iniquity is taken away and your sin atoned for” (Isaiah 6:6-7).

• In both cases grace meets confession: cleansing precedes calling.


From Confession to Commission

• Peter is told, “From now on you will catch men” (Luke 5:10).

• Isaiah hears, “Whom shall I send?” and replies, “Here I am. Send me!” (Isaiah 6:8).

• The pattern

1. Revelation of God.

2. Recognition of sin.

3. Reception of grace.

4. Readiness for service.


Key Takeaways for Today

• Genuine encounters with the Lord produce humility, not self-confidence.

• Honest confession invites cleansing (1 John 1:9).

• God never exposes sin to shame us without also offering mercy and purpose.

• Those forgiven become ambassadors—whether fishing boats on Galilee or prophetic courts in heaven.

How can Luke 5:8 inspire us to confess our unworthiness before God today?
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