1 Corinthians 14:21 to Isaiah 28:11-12

OT Source(s):

Isaiah 28:11-12 (By people of strange lips and foreign tongue the Lord will speak to this people)

Source: Treasury of Scripture Knowledge

Reference Type: Direct Quotation

Connection Method(s): Typology + Analogy

Significance: Isaiah 28:11-12 warns that since Israel refused to hear God's clear message through prophets, He would speak through foreign invaders (Assyrians) - a sign of judgment. Paul applies this typologically: tongues function similarly as a sign to unbelievers. When unbelievers enter Christian worship and hear unintelligible tongues, this confirms their outsider status (like Israel hearing foreign languages at conquest). However, if they hear prophecy, God's clear word convicts and converts them (14:24-25). This reveals Paul's hermeneutical sophistication: he doesn't merely quote Scripture but applies its theological pattern (clear word rejected → foreign speech as judgment) to the Corinthian situation. The text also shows Paul's pneumatology: the Spirit's gifts must be used in love for building up, not for self-display.