Isaiah 6:8

God then asked for a volunteer to serve Him, evidently among any present in the throne room (cf. 1 Kings 22:19-20). "Us" is a plural, and the plural in Hebrew (but in no other Semitic languages) adds intensification (cf. Genesis 1:26; Genesis 11:7; 1 Kings 22:19-23). It only hints at plurality within the Godhead, but the New Testament makes that plurality clear (cf. John 12:41; Acts 28:25). This may be a plural of majesty, or the Lord may have meant Himself, the seraphim, and the heavenly host.

Note the balance of divine sovereignty and human choice in His words: He would send someone, but that someone needed to be willing to go. God’s grace to him in not consuming him, but rather cleansing him, motivated Isaiah to volunteer to be God’s servant.

This section is a major revelation of the grace of God and the condition for spiritual cleansing. It is one of the premier salvation passages in the Old Testament. God’s grace on this occasion so impacted Isaiah that his ministry bore this hallmark, as we observe in this book.

"Here in this matchless passage we find the reason why so few are willing to serve God. They need above all the conviction of sin. Only when a man has been convicted of sin and has understood that the Redeemer has borne the guilt of his sin is he willing and ready joyfully to serve God, to go wherever God may call him." [Note: Young, 1:254.]

Many preachers of this passage have pointed out that the order of events is very significant. First, after gaining a greater appreciation for God’s holiness and his own sinfulness, Isaiah said "woe," acknowledging his own uncleanness. Second, the seraphim said "lo" ("behold" in the NASB), pointing to God’s provision for cleansing. Third, God said "go" (Isaiah 6:9), giving the prophet a mission to fulfill.