I have written a little bit on this previously in the article on the third woe.
In chapter 2:12-14 I wrote of verse 14, “There is a prize in these verses. ‘For the earth shall be filled with the knowledge of the glory of the LORD, as the waters cover the sea’. The leaders and rulers of Babylon sought to build a great kingdom by the shedding of blood, and taking what belonged to others, and often at the expense of their lives. There is a Kingdom coming in which there will be no war, but only peace. The peace of God that passes all understanding. Notice the vastness of this “knowledge of the glory”; it is “as the waters cover the sea”. How much do the waters cover the sea? The sea is water, thus this filling with the knowledge of the glory covers the whole realm of the Kingdom. All the bloodshed, and such will have been done away. Jesus Christ will reign supremely. The knowledge of His glory will fill the earth.”
For the remainder of this article I want to place here the quotes from two Study Bibles. The first will be the MacArthur Study Bible New Kings James Version; and the other is Nelson’s NKJV Study Bible.
“2:14 filled. In contrast to the self-exaltation of the Chaldeans, whose efforts come to naught, God promised that the whole earth would recognize His glory at the establishment of His millennial kingdom (cf. Num. 14:21; Ps. 72:19; Is. 6:3; 11:9).” MacArthur Study Bible, p. 1320
“2:14. God’s future kingdom on earth will feature a reign of righteousness (see Is. 2:1-4; Mic. 4:1-5). All humanity on the renewed earth will know the Lord and live in accordance with His will. The structures of human systems, adequate as they are for the present, will fall under God’s judgment because they encourage a spirit of independence from Him. knowledge: What Satan fraudulently promised in Gen. 3:5, God will deliver. The glory of the LORD speaks of the full manifestation of His person, significance, presence, and wonder. The true knowledge of God in the time of His kingdom on earth will be like the waters–all embracing, inescapable, and fully enveloping.” Nelson’s NKJV Study Bible p.1523.
Loving the appearing of the Lord, we long for and expect His soon return in setting up His kingdom on the earth. It will be a wonderful and glorious kingdom where we will receive the knowledge of the LORD. That knowledge will be full. Longing for that day.