Compare Isa 44:25 & Deut 18:20-22.
Compare Isaiah 44:25 with Deuteronomy 18:20-22 on false prophecy. What similarities exist?

Setting the Scene

• Isaiah is speaking to Judah’s exiles about the unmatched power of the LORD.

• Moses, in Deuteronomy, is preparing Israel to enter Canaan and guarding them from spiritual deception.

• Both passages defend God’s reputation and protect His people from voices that would mislead them.


Key Texts

Isaiah 44:25 – “who foils the signs of false prophets and makes fools of diviners”

Deuteronomy 18:20 – “But the prophet who presumes to speak a word in My name… that prophet shall die.”

Deuteronomy 18:21 – “You may say in your heart, ‘How can we recognize a message the LORD has not spoken?’”

Deuteronomy 18:22 – “If the message does not come to pass, the LORD has not spoken it; do not be afraid of him.”


Shared Themes: How God Addresses False Prophecy

• Divine Exposure

– Isaiah: God Himself “foils” and “makes fools” of pretenders.

– Deuteronomy: unmet predictions expose the fraud; time reveals truth.

• Absolute Standard

– Isaiah: God’s sovereignty means any rival claim must collapse.

– Deuteronomy: only 100 % accuracy qualifies a true prophet (cf. Jeremiah 28:9).

• Serious Consequences

– Isaiah implies humiliation for deceivers.

– Deuteronomy prescribes death for those who speak falsely in God’s name (cf. Zechariah 13:3).

• Protection for God’s People

– Isaiah shows the LORD actively shielding His flock by overturning lies.

– Deuteronomy equips the people to test words and refuse fear of charlatans (cf. 1 John 4:1).

• Upholding God’s Honor

– Both passages stress that false words tarnish His holy name; therefore He acts (cf. Ezekiel 13:6-9).


Take-Home Truths

• God never leaves His people at the mercy of deception; His truth always prevails.

• The sure test remains unchanged: fulfilled predictions and doctrinal fidelity (Galatians 1:8).

• Discernment is not optional—Scripture commands it, and God supplies what we need to practice it confidently.

How can Isaiah 44:25 encourage us to discern truth in today's world?
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