Question 1

What does Isaiah 8:20 mean?

Accepted Answer

Isaiah 8:20 says that people should measure every message or teaching by “the law and the testimony”—God’s revealed instruction and witness. If someone’s words do not line up with this standard, Isaiah says it is because they have no true understanding or guidance (“no light in them”). In this verse, Isaiah is speaking to the people of Judah during a time of confusion and fear, when many were tempted to seek guidance from sources other than God, such as mediums or false prophets. Isaiah insists that God’s own word—His law and testimony—is the only reliable source of truth, and anything that contradicts it should be rejected as darkness.

Question 2

The Hebrew behind Isaiah 8:20

Accepted Answer

law (תּוֹרָה, torah): This word means instruction or teaching, often referring to God’s commands given through Moses. Here, it points to the foundational guidance God has provided. testimony (תְּעוּדָה, te‘udah): This refers to the witness or evidence God has given, possibly through His prophets or the record of His actions. It emphasizes the importance of God’s revealed truth as a standard. light (שַׁחַר, shachar): This word usually means dawn or morning light, symbolizing understanding, truth, or guidance. Isaiah uses it to say that those who do not speak according to God’s word lack the true light needed to guide others.

Question 3

Why Isaiah 8:20 matters

Accepted Answer

Isaiah 8:20 clarifies that not every spiritual-sounding message is trustworthy; only those that agree with God’s revealed word are reliable. The verse highlights the danger of turning to other sources for guidance, a temptation the people of Judah faced in their crisis. This verse connects to the wider passage by showing Isaiah’s strong warning against superstition and false prophecy, urging the people to hold fast to what God has already made known.

Isaiah 8:20 (KJV)