Long ago, at many times and in many ways, God spoke to our fathers by the prophets, but in these last days he has spoken to us by his Son, whom he appointed the heir of all things, through whom also he created the world. He is the radiance of the glory of God and the exact imprint of his nature, and he upholds the universe by the word of his power. After making purification for sins, he sat down at the right hand of the Majesty on high, having become as much superior to angels as the name he has inherited is more excellent than theirs. -- Hebrews 1:1-4 (ESV)

and

And the Word became flesh and dwelt among us, and we have seen his glory, glory as of the only Son from the Father, full of grace and truth. -- John 1:14 (ESV)

Some scholars quote this passage to "proof" Jesus incarnation. They reason the "glory" means "manifestation of God as a human".

Therefore they will interpret verses like:

So, whether you eat or drink, or whatever you do, do all to the glory of God. -- 1 Corinthians 10:31 (ESV)

That you should do everything for Jesus who according to them is the "glory of God".

However, if "glory of God" means "Jesus", then the definition should fit scriptures too, but it fails with verse like:

In the same way, let your light shine before others, so that they may see your good works and give glory to your Father who is in heaven. -- Matthew 5:16 (ESV)

When cannot give Jesus to our Father!

Furthermore, Jesus refers to God's glory as something other than himself:

The glory that you have given me I have given to them... -- John 17:22 (ESV)

And we know God have Jesus (John 3:16), yet Isaiah wrote:

I am the LORD; that is my name; my glory I give to no other... -- Isaiah 42:8 (ESV)

It is also very unlikely that the Jews who believed in a single God would have understood or meant it that way.