Genesis 7:20: God's promise kept?
What does Genesis 7:20 teach us about God's faithfulness to His promises?

Verse in Focus

“The waters rose and covered the mountaintops to a depth of fifteen cubits.” (Genesis 7:20)


A Promise Remembered

• God had announced in advance: “I will bring floodwaters upon the earth…” (Genesis 6:17)

• He repeated the warning: “In seven days I will send rain on the earth for forty days and forty nights.” (Genesis 7:4)

Genesis 7:20 records the exact performance of that promise—mountains covered, the flood as extensive as He declared.


How Fifteen Cubits Displays Faithfulness

• Precise measurement: Scripture does not say “about” or “roughly”; it states fifteen cubits, underscoring the reliability of every detail God gives.

• Complete coverage: Fifteen cubits (about 22 feet) above the highest peaks ensured no refuge remained outside the ark—exactly what God said would happen.

• Ark protection: The ark itself was 30 cubits high (Genesis 6:15), leaving it safely afloat with room to clear submerged peaks, fulfilling God’s pledge to preserve Noah and his family.

• Visible proof: For over a year Noah witnessed the waters’ dominance, daily evidence that God means what He says.


Lessons on God’s Faithfulness

• When God warns, He follows through—both in judgment and in salvation.

• His promises are not vague; they are specific, measurable, and unfailing.

• The same God who kept Noah afloat keeps every word He has spoken in Scripture.

• Because He fulfilled His word in the flood, we can trust His future promises of deliverance, presence, and eternal life.


Living It Out

• Read His promises as certain facts, not hopeful possibilities.

• Build your “ark” of obedience now, confident He will honor every word.

• Remember Genesis 7:20 when doubts rise—if He covered mountains exactly as promised, He will cover you with grace exactly as promised.

How can we apply the obedience of Noah to our daily lives today?
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