Shared ground
Jesus’ prayer opens with a clear claim: “the time has come,” and he asks the Father to “glorify” him (vv. 1, 5). The request is not an end in itself. Jesus states a purpose: the Son’s glorification will result in the Father being glorified (v. 1).
Jesus ties this to what the Father has already done: the Father “gave” the Son authority over all humanity, with the aimed outcome that Jesus gives “eternal life” to those the Father has given him (v. 2). Eternal life is then defined in relational terms: knowing the Father as the only true God, and knowing Jesus as the one the Father sent (v. 3). Jesus also claims he has already glorified the Father on earth by completing the assigned work (v. 4).
Where interpretation differs
What “glorify” means here. Many read “glory” as including Jesus’ suffering and death, because in John the “hour” often points to the cross and what follows. Others stress “glory” mainly as Jesus’ public vindication and restored honor after death (resurrection/return), with suffering as the path to it. Most readings combine these elements, but they weigh them differently.
How to understand “the glory I had with you before the world existed.” Some take this as Jesus speaking of a real, personal pre-world shared glory with the Father (strongly implying pre-existence). Others argue the language can describe glory that was planned or promised “before the world,” now being requested as the mission reaches completion. The wording “I had with you” naturally sounds like shared experience, but interpreters disagree on whether it must be taken that way.
How “authority over all flesh” relates to those “given” to Jesus. Some read “authority over all” as universal kingship that still has a specific saving purpose for those given to him. Others read the “authority” more narrowly as authority exercised for the sake of granting life to the given ones, not a statement about how Jesus relates to every person in the same way.
Why the disagreement exists
The passage stacks big themes in very few lines—“hour,” “glory,” “authority,” “given,” and “before the world existed.” John’s Gospel also uses “glory” and “hour” in ways that can include multiple moments (death, resurrection, return). And v. 5 can be read either as describing shared past reality or as expressing God’s pre-world plan in personal language.
What this passage clearly contributes
Explicitly, the text presents Jesus as the Father’s authorized agent with authority “over all flesh” (v. 2), whose mission includes giving eternal life to people the Father has “given” him (v. 2). It defines eternal life not mainly as endless duration but as knowing the Father and knowing Jesus as the sent one (v. 3). It also frames Jesus’ coming suffering/transition as the decisive “time,” and treats Jesus’ completed work and requested glory as directly tied to honoring the Father (vv. 1, 4–5). John 17:3 is especially programmatic for how John connects salvation to knowing God and the Son who was sent.