"Jehovah" as "YHWH," the Tetragrammaton, appears in the Bible 7,000 times. YHWH is certainly the personal name of God, as he states many times in the O.T. The KJV has included his name 4 times (which is better than none), the most familiar place being Psalm 83:18.
It's interesting that you say that God cannot be named. Jehovah begs to differ with you. The Living Bible says, at Exodus 3:15:
"Tell them, 'Jehovah, the God of your ancestors Abraham, Isaac, and Jacob, has sent me to you.' This is my eternal name, to be used throughout all generations."
The fact that Jehovah GAVE Jesus the name above every name shows that Jehovah is superior to even Jesus. You leave out important parts of verses.
"God highly exalted him, and bestowed on him the name which is above every name." (Philippians 2:9, NASB)
A person doesn't have to be a rocket scientist to see that if God GAVE Jesus that name and prominence, His own name would be understood to be the highest of all, as Psalm 83:18 states. We would naturally understand that Jesus' name is above every name with the exception of the One who gave him that name.