Albert Barnes on John 17:24

I will. This expression, though it commonly denotes command, is here only expressive of desire. It is used in prayer, and it was not the custom of the Saviour to use language of command when addressing God. It is often used to express strong and earnest desire, or a pressing and importunate wish, such as we are exceedingly anxious should not be denied, Mk 6:25, 10:35; Mt 12:38, 15:28.

Where I am. In heaven. The Son of God was still in the bosom of the Father, Jn 1:18. Jn 7:34. Probably the expression here means where I shall be.

My glory. My honour and dignity when exalted to the right hand of God. The word "behold" implies more than simply seeing; it means also to participate, to enjoy. Jn 3:3, Mt 5:8.

Thou lovedst me, &c. This is another of the numerous passages which prove that the Lord Jesus existed before the creation of the world. It is not possible to explain it on any other supposition.

(b) "be with me where I am" 1Thes 4:17