God’s holiness so deeply impacted Isaiah he thought his life was over. In all likelihood, he recalled the words of God to Moses saying, “no man shall see Me and live” (Ex.33:20). Whether a vision or a view into the heavenly realm, we know Isaiah was never the same.
Loudly repeating the word “holy” three times in deafening succession, seraphim emphatically express the absolute holiness of God. Whether a vision or a glimpse into unseen reality, one thing is certain—Isaiah was never the same.