And Hezekiah prayed before the Lord, and said, O Lord God of Israel, which dwellest between the cherubims, thou art the God, even thou alone, of all the kingdoms of the earth; thou hast made heaven and earth. (2 Kings 19:15)
This refers to the holy Shekinah, the miraculous glory that symbolized the personal presence of God and that appeared above the mercy seat between the two cherubim (see Ex. 25:22; 29:43; Lev. 16:2; 1 Sam. 4:4).
Thou alone.
Hezekiah in his prayer acknowledged God as the only God, the Lord of all heaven and earth, whom Sennacherib had boldly defied. This was a protest against the letter of Sennacherib, in which he treated Jehovah as only one among the many insignificant gods of Western Asia, who had proved so helpless before the Assyrians.