The Lord Jesus Christ as an reward for His obedience unto death, God Highly Exalted Him as here explained Phil 2:5-11
6 Who, being in the form of God, thought it not robbery to be equal with God:
7 But made himself of no reputation, and took upon him the form of a servant, and was made in the likeness of men:
8 And being found in fashion as a man, he humbled himself, and became obedient unto death, even the death of the cross.
9 Wherefore God also hath highly exalted him, and given him a name which is above every name:
10 That at the name of Jesus every knee should bow, of things in heaven, and things in earth, and things under the earth;
11 And that every tongue should confess that Jesus Christ is Lord, to the glory of God the Father.
Now a couple of items will pointed out as to the Reward of Christ's Sufferings or Death in Being Highly Exalted Him !
Highly Exalted in the greek is hyperypsoō and it means:
metaph. to exalt to the highest rank and power, raise to supreme majesty
2) to extol most highly
3) to be lifted up with pride, exalted beyond measure
4) to carry one's self loftily
The Lord Jesus Christ has been exalted to the Supreme Majesty, Highest in Rank and Power ! Now what Being can Be acknowledged as having Supreme Majesty but God ? 1 Chron 29:11
Thine, O LORD is the greatness, and the power, and the glory, and the victory, and the majesty: for all that is in the heaven and in the earth is thine; thine is the kingdom, O LORD, and thou art exalted as head above all.
So in other words, the Lord Jesus Christ is not one bit less than the Being being acknowledged here !
Also, The Lord Jesus Christ was given a Name above every Name !
Now what Name can possibly be above every Name but God's Name ?
Similar is what Paul wrote here Eph 1:
Far above all principality, and power, and might, and dominion, and every name that is named, not only in this world, but also in that which is to come:
Now, How Can the Name of Christ Jesus be above every Name that is Named if He be not God in the Highest Rank of Authority ?
Ps 8:1
O LORD, our Lord, how excellent is thy name in all the earth! who hast set thy glory above the heavens.
Now, Jehovah Here is acknowledged as the Saints Master ! There is Only one Lord in this regards 1 Cor 8:6
But to us there is but one God, the Father, of whom are all things, and we in him; and one Lord Jesus Christ, by whom are all things, and we by him.
And how excellent is His Name ? Jesus Christ Acts 4:12
Neither is there salvation in any other: for there is none other name under heaven given among men, whereby we must be saved.
There is no other Name in Which Salvation can be found, than Jesus Christ. Isa 45:8
Drop down, ye heavens, from above, and let the skies pour down righteousness: let the earth open, and let them bring forth salvation, and let righteousness spring up together; I the LORD have created it.
Neh 9:5
Then the Levites, Jeshua, and Kadmiel, Bani, Hashabniah, Sherebiah, Hodijah, Shebaniah, and Pethahiah, said, Stand up and bless the LORD your God for ever and ever: and blessed be thy glorious name, which is exalted above all blessing and praise
This verse can apply to the Lord Jesus Christ, whose Exaltation has given Him a Name above Every Name which is Named, so He must be Jehovah Lord God ! For only His Name could qualify for such High Praise and Recognition !
And so it is, Every Tongue will Confess Jesus as Lord God Jehovah, because its an Reward for His Obedience unto Death Phil 2:5-11
Every Tongue will confess this Truth. Some because of their Salvation Experience and giving evidence of their conversion out of jewish ignorance, which is Paul's main Point here Rom 10:9-10
9 That if thou shalt confess with thy mouth the Lord Jesus, and shalt believe in thine heart that God hath raised him from the dead, thou shalt be saved.
10 For with the heart man believeth unto righteousness; and with the mouth confession is made unto salvation.
In other words, if an jew who did now confess Jesus as Lord God, to say the same thing as Scripture says, this gave new evidence that they have been saved [regenerated], because they no longer are ignorant to whom this Jesus is, that He is God ! And at the same time Believe that God raised Him from the Dead because He was also Man ! Only experiencing Salvation can clear up that paradox in a persons mind and heart !
Also, the non elect men of the world, because of Christ's Exaltation and Reward, they also, before being cast into Hell, confess Jesus as Lord to the Glory of God the Father !
This must be because of Christ's Exaltation. That is why it is stated here "under the Earth" Phil 2:10
That at the name of Jesus every knee should bow, of things in heaven, and things in earth, and things under the earth;
So the reprobated who now deny the Deity Lordship of Christ and those who have died, shall at the Second Coming and Judgment Day, they shall all bow and confess that Jesus is Lord God to the Glory of the Father !