Isaiah 6:2-6

2Seraphs stood over him; each one had six wings. With two wings they covered their faces, with two they covered their feet, and they used the remaining two to fly.

3They called out to one another, “Holy, holy, holy is the Lord who commands armies! His majestic splendor fills the entire earth!”

4The sound of their voices shook the door frames, and the temple was filled with smoke.

5I said, “Too bad for me! I am destroyed, for my lips are contaminated by sin, and I live among people whose lips are contaminated by sin. My eyes have seen the king, the Lord who commands armies.”

6But then one of the seraphs flew toward me. In his hand was a hot coal he had taken from the altar with tongs.