The "and" makes a huge difference in the Bible, as well. For example, there are two kings described by the prophets as the "king of kings." Artaxerxes, the emperor of Persia from 465-424 B.C., and Nebuchadnezzar, the emperor of Babylon from 605-562 B.C., were both recognized as such:
Artaxerxes: "Artaxerxes, king of kings, unto Ezra the priest, a scribe of the law of the God of heaven, perfect peace, and at such a time" (Ezra 7:12).
Nebuchadnezzar: "For thus saith the Lord GOD; Behold, I will bring upon Tyrus Nebuchadnezzar king of Babylon, a king of kings, from the north, with horses, and with chariots, and with horsemen, and companies, and much people" (Ezek. 26:7).
And: "Thou, O king, art a king of kings: for the God of heaven hath given thee a kingdom, power, and strength, and glory" (Dan. 2:37).
But there is only one "man" in the Bible who is known as the King of kings AND the Lord of lords: Jesus of Nazareth (17 times between Mt. 26:71 - Acts 26:9); Jesus Christ (187 times between Mt. 1:1 - Rev. 22:21); Jesus, the Son of God (44 times between Dan. 3:25 - Rev. 2:18), Jesus, the Creator of the Universe (Jn. 1:1-3, 10; Eph. 3:9; Col. 1:16; Heb. 1:1-2; Rev. 4:11)!
Jesus: "Which in His times He shall shew, who is the blessed and only Potentate, the King of kings, and Lord of lords" (1 Tim. 6:15).
And: "These shall make war with the Lamb, and the Lamb shall overcome them: for He is Lord of lords, and King of kings: and they that are with Him are called, and chosen, and faithful" (Rev. 17:14).
And: "And He hath on His vesture and on His thigh a name written, KING OF KINGS, AND LORD OF LORDS" (Rev. 19:16).
I believe the "and" makes a difference in whether or not one is saved;
I would ask you, is Jesus your Lord AND Savior? It makes a difference!