Arcana Coelestia #3
3. Without such life the Word as regards the letter is dead, for it is the same with the Word as it is with man, who, as the Christian world knows, is internal as well as external. The external man if parted from the internal man is just a body and therefore dead. It is the internal man which lives and imparts life to the external. The internal man is the soul of the external man. The same applies to the Word which as to the letter alone is like the body without a soul.
Isaiah 6:1-5
1
In the year that king Uzziah died, I saw the Lord sitting on a throne, high and lifted up; and his train filled the temple.
2
Above him stood the seraphim. Each one had six wings. With two he covered his face. With two he covered his feet. With two he flew.
3
One called to another, and said, "Holy, holy, holy, is Yahweh of Armies! The whole earth is full of his glory!"
4
The foundations of the thresholds shook at the voice of him who called, and the house was filled with smoke.
5
Then I said, "Woe is me! For I am undone, because I am a man of unclean lips, and I dwell in the midst of a people of unclean lips: for my eyes have seen the King, Yahweh of Armies!"