What Does Isaiah 8:20 Mean?

To the instruction and to the witness. If they do not speak according to this word, it is because there is no dawn in them.
Isaiah 8:20 · SDV
Key words are shown with the Hebrew or Greek and what each word meant.

Selah Decoded Version The Selah Decoded Version renders what the Hebrew and Greek words meant to the people who first heard them.

This verse in the King James

King James wording
To the law and to the testimony: if they speak not according to this word, it is because there is no light in them.

A voice may sound certain while carrying no dawn; the measure is whether it speaks in accord with instruction and testimony.

When a voice speaks to you now, its claim is measured against instruction and testimony. If it does not speak in accord with this word, the verse names the condition plainly: there is no dawn in it.

WHAT THIS UNDOES

A confident voice is not proof of illumination; this verse locates light in speech that accords with instruction and testimony.

שַׁחַר

shaḥar

GROWS FROM

שחר

Dawn, the breaking of day, morning light.

The Hebrew word beneath “light” carries the image of dawn: something beginning to emerge into view. A related verb from the same consonants means to seek early, linking the arriving day with what is sought at daybreak.

ALSO GROWS

shaḥar: Dawn; morning light.

שַׁחַר

This is the word behind the verse’s “light,” giving the phrase the image of a day that never breaks.

shiḥer: Sought early or earnestly.

שִׁחֵר

This related form connects dawn with seeking at daybreak, when what was hidden begins to come into view.

תּוֹרָה

torah

GROWS FROM

ירה

To direct or point; to instruct or teach.

Torah carries the sense of instruction that points a way. The verse’s measure for speech is therefore not bare rule-following: it is whether a voice stays aligned with the direction this teaching gives.

ALSO GROWS

yarah: To direct or instruct; also to cast or throw.

יָרָה

The verb links instruction with pointing a direction, showing why Torah serves as a guide for testing speech.

moreh: A teacher or instructor.

מוֹרֶה

The teacher is another branch of the same root: instruction is something that directs a person, not merely a written standard.

דָּבָר

davar

GROWS FROM

דבר

To speak; a spoken word or matter.

The Hebrew root holds speech and matter together: a word can be what is said and the matter being spoken about. The test reaches both the utterance and what it says.

ALSO GROWS

dibber: He spoke or declared.

דִּבֵּר

This verbal form echoes the verse’s focus on what a voice says.

davar: A word, matter, or thing.

דָּבָר

The same form used for “this word” can name the matter itself, joining speech to its substance.

Speech becomes a lamp for the path when it stays answerable to instruction and truth, while claims of light are exposed when life contradicts them.

For the command is a lamp, and the instruction is light, and the reproofs that straighten are the way of life.
Proverbs 6:23 · SDVInstruction is pictured as light that reveals the way of life.
Your word is a lamp to my feet, and a light to my path.
Psalm 119:105 · SDVThe word gives light for the path, showing what instruction aligned speech carries.
If we say that we share in common with him, and walk in darkness, we lie, and do not do the truth.
1 John 1:6 · SDVA spoken claim is tested by whether the speaker’s walk accords with truth and light.
Your word is a lamp to my feet, and a light to my path.
Psalm 119:105 · SDV

Both verses use the Hebrew root ⁨דבר⁩ (davar, word or matter): Isaiah speaks of what accords with “this word,” while the psalm names the word as a lamp and light. Together they show what dawn-less speech lacks: illumination for the path.

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Isaiah 8:20 Meaning