Jesus Claims To Be Glorified
Isaiah 42:8 says that YHWH will not give his glory to another or his praise to idols.
Yet the New Testament says that the Father glorifies Jesus.
All mine are yours, and yours are mine, and I am glorified in them. — John 17:10 (ESV)
This may seem to be a contradiction. Some readers therefore conclude that Jesus must share God's own identity, because Jesus receives glory while Isaiah reserves glory for YHWH. This is a serious reading and needs careful attention.
Isaiah 42:8 in Context
Isaiah 42 introduces YHWH's servant. YHWH supports him and puts His spirit on him (Isaiah 42:1). In this setting, YHWH says, “I am YHWH; that is My name; My glory I give to no other, nor my praise to carved idols” (Isaiah 42:8).
The verse contrasts YHWH with idols, or carved gods. YHWH will not let idols receive the glory and praise that belong to him. It does not say that he can never give glory to a servant. Isaiah has already described a servant who receives YHWH's support and spirit (Isaiah 42:1). The Bible does not use “glory” in exactly the same way or to the same degree in every passage. This distinction helps explain the passages where God glorifies Jesus and other people.
Glory Given to Jesus
With Isaiah's contrast in view, Jesus says that his glory comes from the Father. He asks, “Father, glorify your Son, that the Son may glorify you” (John 17:1). God glorifying Jesus is thus linked to Jesus glorifying God.
Later in the same prayer, Jesus says that the Father gave him glory and that he gave this glory to his disciples so that they may be one (John 17:22). The disciples do not become God when they receive this glory. This shows that glory given by God can have a purpose that leads people back to God's honour.
Paul also says that God glorifies the people he calls and makes right with him.
And those whom He predestined He also called, and those whom He called he also justified, and those whom he justified He also glorified. — Romans 8:30 (ESV)
These are God's people, not idols or competing gods. These passages do not mean that every use of “glory” is the same in kind or degree. They do show that when God gives glory or honour to people, this is not automatically the giving of the glory and praise that Isaiah 42:8 refuses to idols.
Conclusion
Isaiah 42:8 says that YHWH will not give His glory and praise to idols, as explained in Isaiah 42:8 in Context. From that context, Scripture shows that the Father glorifies Jesus, Jesus glorifies the Father, and glory can also be given to Jesus' followers, as shown in Glory Given to Jesus.
Jesus receiving glory therefore does not by itself contradict Isaiah 42:8 or require the assumption that Jesus is God.