"This" points directly at what Jesus just said — knowing God and knowing Jesus is itself the thing we call eternal life, not a reward that comes after it.

Eternal life here isn't just about living forever after death — it's a deep, transformative connection with God that starts the moment you truly know him.

Knowing God here isn't about collecting facts about him — it's the kind of deep, personal knowing you have with someone you're genuinely in relationship with, and Jesus says that's what eternal life actually is.

There is no backup god, no alternate route, no spiritual equivalent — the one Jesus points to stands entirely alone as the source of eternal life.

The one true God who can actually be known personally — not just believed in — and that knowing him is what eternal life is made of.

It points to Jesus as the specific, identified person the Father personally sent — not just anyone, but this one.

In this verse, Jesus is the personal name of the one God sent into the world — a name that itself declares His whole mission, that through knowing Him people find rescue and life that never ends.

In this verse, Christ is Jesus identified as the one officially sent and authorized by God — not self-appointed, but hand-picked, equipped, and commissioned for the specific mission of bringing people into eternal life.