Isaiah 8:20
A focused desk for reading, commentary, cross-references, original language notes, and your own observations.
Isaiah 8:20
20 To the law and to the testimony: if they speak not according to this word, it is because there is no light in them.
Chapter Context
Isaiah 8 is a prophetic oracle chapter in the Old Testament that explores themes of grace, faith, covenant. Written during the Assyrian and pre-exilic periods (c. 740-680 BCE), this chapter should be understood within its historical context: Addressed Judah during Assyria's rise, Babylon's threat, and anticipated restoration.
The chapter can be divided into several sections:
- Verses 1-5: Introduction and setting the context
- Verses 6-12: Development of key themes
- Verses 13-20: Central message and teachings
- Verses 21-22: Conclusion and application
This chapter is significant because it addresses timeless questions about faith, suffering, and divine purpose. When studying this passage, it's important to consider both its immediate context within Isaiah and its broader place in the scriptural canon.
Verse Study
Isaiah 8:20
20 To the law and to the testimony: if they speak not according to this word, it is because there is no light in them.
Analysis
The command to consult 'the law and the testimony' provides the proper alternative to occultism. 'Law' (Torah) and 'testimony' (prophetic witness) together constitute divine revelation—God's written word. The conditional 'if they speak not according to this word' establishes Scripture as the standard for testing all teaching. The verdict 'there is no light in them' pronounces darkness and deception on any teaching contradicting Scripture. This is the Reformed principle of sola Scriptura—Scripture alone is our supreme authority, the sole infallible rule of faith and practice.
Historical Context
In Isaiah's time, the law (Pentateuch) and testimony (prophetic writings) were the available Scriptures. These provided sufficient guidance without consulting spirits. The phrase 'to the law and to the testimony' became a rallying cry during the Reformation, as Reformers insisted Scripture alone—not tradition, councils, or papal decrees—was the final authority. This verse grounds the Protestant principle of biblical supremacy over all human wisdom and spiritual experiences.
Reflection
- How do we make Scripture our primary source of guidance rather than subjective experiences or feelings?
- What does it mean practically to test all teaching against 'the law and the testimony'?
- How does commitment to biblical authority protect us from deception and false teaching?
Word Studies
- Law: תּוֹרָה (Torah) H8451 - Law, instruction
Cross-References
- Word: Isaiah 8:16, Psalms 119:130, Jeremiah 8:9, John 5:39, Acts 17:11, 2 Peter 1:19
- Light: Proverbs 4:18
- Parallel theme: Micah 3:6, Malachi 4:2, Romans 1:22