“Now therefore, O LORD our God, I beseech Thee, save Thou us out of his hand, that all the kingdoms of the earth may know that Thou art the LORD God, even Thou only.” 2 Kings 19:19 (KJV)
The king of Assyria had sent Rabshakeh his commander of the Assyrian army to threaten, to defame, to despise, to show contempt for Judah, her king, and her God.
Being the man of God king Hezekiah was he went to God in prayer, laid the letter of mockery out before the LORD and prayed.
An ongoing theme through out all of the Old Testament, is “Know that the LORD is God” or that “GOD is the Lord”. That phrase can be found at least 63 times in the prophecy of Ezekiel. Here it is again in the prayer of Hezekiah.
The LORD God is our only help. He alone will hear prayer. We access His throne only through the sacrifice of His Son.
Since it is so readily mentioned throughout Scripture, then, we should get the strong impression that the world needs to know that the He is “the LORD God”, and that there is no other; and that He is known solely through His only offering for sin. That is His Son Jesus Christ.