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Why did a seraph touch Isaiah’s lips with a burning coal?
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Isaiah
Miniature of Isaiah, manuscript illumination from The Siegburg Lectionary, 12th century.
In the vision described in the sixth chapter of the Book of Isaiah, the prophet encounters the divine glory and holiness of God. Overwhelmed by this experience, Isaiah becomes acutely aware of his own inadequacy and impurity.
The seraph, a celestial being serving as a throne guardian, touches Isaiah’s lips with a burning coal to symbolically cleanse him of his sin and purify his speech. This act of ritual purification prepares the prophet to serve as a messenger for God, fortifying him to deliver a difficult message of condemnation to the people of Israel despite the inevitable opposition he would face.12