Jesus would glorify God in His death. He knew He already had all authority.

John 17:

17 After saying all these things, Jesus looked up to heaven and said, “Father, the hour has come. Glorify your Son so he can give glory back to you. 2 For you have given him authority over everyone. He gives eternal life to each one you have given him. 3 And this is the way to have eternal life—to know you, the only true God, and Jesus Christ, the one you sent to earth. 4 I brought glory to you here on earth by completing the work you gave me to do. 5 Now, Father, bring me into the glory we shared before the world began.