The contrast between the feeble praise which he had been accustomed to bestow upon the Creator and the fervid praises of seraphim astonished and humiliated the prophet. He had, for the time being, the sublime privilege of appreciating the spotless purity of Jehovah’s exalted character.... In the light of this matchless radiance, that made manifest all he could bear in the revelation of the divine character, his own inward defilement stood out before him with startling clearness. His very words seemed vile to him. (RC 338.3) MC VC