John 17:5

Verse 5. With thine own self. In heaven, granting me a participation of the same honour which the Father has. He had just said that he had glorified God on the earth; he now prays that God would glorify him in heaven. With the glory. With the honour. This word also includes the notion of happiness, or everything which could render the condition blessed. Before the world was. There could not be a more distinct and clear declaration of the pre-existence of Christ than this. It means before the creation of the world; before there was any world. Of course, the speaker here must have existed then, and this is equivalent to saying that he existed from eternity.