The King James version uses LORD wherever the name of God appears as the Hebrew letters that transliterated into English as YHWH, or alternatively as JHVH (the same thing). Hebrew has no vowels, so we add vowels so we can speak it in English. The vowels are arbitrarily chosen, so his name comes out in English as Yahweh or as Jehovah. Both are the same name. The name embodies the fullness of the Godhead, Father, Son, and Spirit.
Let us break down the name Yahweh a little further. “Yah” is the name of the Father. “Yeshua” or “Yahshua” is the name of the Son. The Holy Spirit has no known distinct name but is the “spirit of the Father.” While “Yah” is Father’s distinct name, “Yahweh” is the name of all three and written in the KJV as LORD (all capitals). When written as Lord or God it is a different form of name with a somewhat different meaning.
The form written as “God” often is the Hebrew word “Elohim” which also embodies the full trinity in its action and affect. While Yahweh is frequently used in conjunction with Yeshua, Elohim is not used in that way. Elohim is the plural Godhead while El is the Father only.
The English word “salvation” in the Old Testament is “Yeshua” in Hebrew. Let me give you some scriptures which show that Yeshua (Jesus) is part of and comes from Yahweh. I will use Yahweh where LORD appears and Yeshua where salvation appears:
• Jonah 2:9; “Yeshua is of Yahweh.”
• Isaiah 12:2; “Behold, El is my Yeshua…Yahweh Jehovah…is become my Yeshua.”
This shows Yeshua (Jesus) in both forms of God’s name, Elohim, and Yahweh, all in a single verse.
• Psalm 88:1; “O Jehovah Elohim of my Yeshua…” This uses both godhead names, Jehovah (Yahweh) and Elohim together to show it is the same name for God the Trinity and has Yeshuah attached to both forms of the name.
A person who might think that Jesus originated with the Virgin Mary is ignorant of his name identified repeatedly in the Old Testament beginning with Elohim in Genesis 1:1 before the world was formed.
Jesus’ name is distinctly seen in three Hebrew forms translated in “salvation” in English. The three Hebrew forms are:  Yeshua  Yesha  Teshua. Yeshua occurs 64 times. Yesha occurs 31 times. Teshua occurs 17 times. That is 112 times his name is found.
Oh, I overlooked “Yasha” which is another 3 times. John 1:1-5 also affirms that Jesus existed before the world was formed. It was by Yeshua’s spoken word that caused the world to be formed and all the life in it. The Father (El or Yah) designed it, the Son (Yeshua, Word) spoke it, and the Spirit brought it together. It took the fullness of the trinity (Yahweh, Elohim) to create everything that was created.