Interesting rendering, but totally false. Joshua's name does not contain the letters YHWH. It only contains YHW.
Yod-Heh-Waw-Shin-Ayin = YHWSHA
Also, the Savior's name does not mean "the Lord is salvation". It means "he shall save" (Mt 1:21). The Hebrew name "Yeshua" means "he will save". The name Yeshua does not contain a heh in Hebrew.
This is what the Strongs has for Joshua. Reference Blue Letter Bible.
https://www.blueletterbible.org/lang/Lexicon/Lexicon.cfm?strongs=H3091&t=KJV
Strongs # 3091 -
Yĕ
Ho
Ws
Huwa` - Joshua
Of course, we are to rely on scripture, and not what the Strongs says.
Jesus is the Lord of lords. The Lord God.
Therefore circumcise the foreskin of your heart, and be stiff-necked no longer. For
the Lord your God is God of gods and Lord of lords, the great God, mighty and awesome, who shows no partiality nor takes a bribe.
Deuteronomy 10:16-17
again
Thus
the Lord my God will come,
and all the saints with You.
Zechariah 14:5 NKJV
and again -
looking for the blessed hope and glorious appearing of our
great God and Savior Jesus Christ, Titus 2:13
and again
12 “And behold, I am coming quickly, and My reward
is with Me, to give to every one according to his work. 13 I am the Alpha and the Omega,
the Beginning and
the End,
the First and the Last.” Revelation 22:12-13
The First and Last is the Title of Israel's Redeemer, the Lord God.
“Listen to Me, O Jacob, And Israel, My called, I
am He,
I am the First, I am also the Last.
Indeed My hand has laid the foundation of the earth,
And My right hand has stretched out the heavens;
When I call to them,They stand up together.
Isaiah 48:12-13
This is what the Book of Revelation is about. The Revelation of Jesus Christ:
Who He is.
He is our Redeemer, our Savior, our Lord, our God: The King of kings and Lord of lords.
The Alpha and Omega. The Lord God of Israel who will come at the end of the age with His saints.
10 I was in the Spirit on the Lord’s Day, and I heard behind me a loud voice, as of a trumpet, 11 saying,
“I am the Alpha and the Omega, the First and the Last,” and, “What you see, write in a book and send
it to the seven churches which are in Asia: to Ephesus, to Smyrna, to Pergamos, to Thyatira, to Sardis, to Philadelphia, and to Laodicea.” 12 Then I turned to see the voice that spoke with me. And having turned I saw seven golden lampstands, 13 and in the midst of the seven lampstands
One like the Son of Man, clothed with a garment down to the feet and girded about the chest with a golden band. 14 His head and hair
were white like wool, as white as snow, and His eyes like a flame of fire; 15 His feet
were like fine brass, as if refined in a furnace, and His voice as the sound of many waters; 16 He had in His right hand seven stars, out of His mouth went a sharp two-edged sword, and His countenance
was like the sun shining in its strength. 17 And when I saw Him, I fell at His feet as dead. But He laid His right hand on me, saying to me, “Do not be afraid;
I am the First and the Last. 18
I am He who lives, and was dead, and behold, I am alive forevermore. Amen. And I have the keys of Hades and of Death.
Revelation 1:10-18
Please consider these verse's of scripture.
May the Lord God Bless you and keep you, and make His face shine upon you, and be gracious to you.
May the Lord lift up His countenance upon you and give you peace.
Blessings to you from God the Father and the Lord Jesus Christ.
JLB