That’s bordering on heresy.
God gave His Son not because He needed glory, but to save Humanity. That's saying something about the importance of Humanity, if it's worthy of that valuable an offering.
God created Man so that the appreciation He received in the spiritual realm would be mirrored in the material. His will would done, on earth, as it is in heaven. That love would exist, as it existed in heaven. There are many phenomena in existence, but the greatest of them all is love. Even God is love.
1 John 4
8The one not loving has not known God, because God is love.
Giving glory to God is a manifestation of loving our fellow human beings, because only by glorifying God does a human begin the process of knowing Him, which in turn leads to his fulfillment.
Numbers 20
9So Moses took the staff from the LORD’s presence, just as He had commanded.
10Then Moses and Aaron gathered the assembly in front of the rock, and Moses said to them, “Listen now, you rebels, must we bring you water out of this rock?”
11Then Moses raised his hand and struck the rock twice with his staff, so that a great amount of water gushed out, and the congregation and their livestock were able to drink.
12But the LORD said to Moses and Aaron, “Because you did not trust Me to show My holiness in the sight of the Israelites, you will not bring this assembly into the land I have given them.”
Deuteronomy 32
51For at the waters of Meribah-kadesh in the Wilderness of Zin, both of you broke faith with Me among the Israelites by failing to treat Me as holy in their presence