And one called to another and said: “Holy, holy, holy is the LORD of hosts; the whole earth is full of his glory!” Isaiah 6:3
Isaiah saw the Lord, then himself. That’s always the way it is. I dare not evaluate myself by my own standards or accomplishments. The only true understanding of myself comes from seeing him. Then, Isaiah was cleansed and then commissioned and sent.
The Lord’s holiness is displayed perfectly in glory at the beginning of the chapter and promised on earth at the end (13).
It’s always about the Lord’s holiness. He desires his servants to be holy and his message of holiness to be presented. His cleansed missionaries love the experience of “not I, but the grace of God that is with me” (1 Corinthians 15:10). They bask in the truth that the fruit of their missionary labor is entirely of God (1 Corinthians 3:7; Romans 11:36). “All things are possible with God!” — in front the words give hope, and behind they give humility. They are the antidote to despair and pride.
Your way, O God, is holy. What god is great like our God? You are the God who works wonders; you have made known your might among the peoples. Psalms 77:13-14