What Does John 17:21 Mean in the King James?

That they all may be one; as thou, Father, art in me, and I in thee, that they also may be one in us: that the world may believe that thou hast sent me.
John 17:21 · KJV
The analysis reads the King James wording.

King James Version The King James Version, first published in 1611. Selah Verse shows the standard text.

This verse in the Selah Decoded Version

The oneness here is shared indwelling made visible as evidence of who sent Jesus.

You are addressed as part of a “they all” whose oneness is grounded in the shared life of the Father and Jesus. That shared life becomes visible to the world as a sign that the Father has sent Jesus.

WHAT THIS UNDOES

It undoes the belief that unity requires erasing distinction: “they all” remain many while their shared life is called one.

ἕν

hen

GROWS FROM

⁨εἷς⁩ (heis), inflected here as ⁨ἕν⁩ (hen)

One; a single whole.

The Greek uses the neuter form after the plural “they all”: the people remain many, while the oneness they share is named as one whole. This word family also includes forms for unity and for uniting, so the verse describes a shared relation rather than numerical sameness.

ALSO GROWS

henotēs: Unity, oneness.

ἑνότης

This related noun names unity as a shared condition, echoing the oneness Jesus describes among many.

henoō: To unite, make one.

ἑνόω

This related verb expresses joining into unity, while the verse keeps the plurality of “they all” in view.

ἀπέστειλας

apesteilas

GROWS FROM

⁨ἀποστέλλω⁩ (apostellō), from ⁨στέλλω⁩ (stellō)

To send out, dispatch, send forth.

The verse places the Father’s sending of Jesus at the center of what the world can recognize through this shared life. The related noun for a sent one shows how sending can also name a person’s role, not just a movement from one place to another.

ALSO GROWS

apostolos: One sent; a messenger.

ἀπόστολος

The sent one carries the same sending-root as Jesus’ relation to the Father in this verse.

apostolē: Sending, commission.

ἀποστολή

This noun makes the act of sending explicit, connecting the visible unity of the verse with the Father’s sending.

In Scripture, oneness is formed through shared relation and source while distinctions remain.

Therefore shall a man leave his father and his mother, and shall cleave unto his wife: and they shall be one flesh.
Genesis 2:24 · KJVTwo remain distinct, yet their shared bond is named as one flesh.
Abide in me, and I in you. As the branch cannot bear fruit of itself, except it abide in the vine; no more can ye, except ye abide in me.
John 15:4 · KJVThe shared life comes through mutual abiding, as Jesus describes here through being one in the Father and him.
For as the body is one, and hath many members, and all the members of that one body, being many, are one body: so also is Christ.
1 Corinthians 12:12 · KJVMany members retain their distinctions within a shared body that is called one.
I in them, and thou in me, that they may be made perfect in one; and that the world may know that thou hast sent me, and hast loved them, as thou hast loved me.
John 17:23 · KJV

The same Greek word for “one” returns here beside “made perfect,” tying shared oneness to completion. This verse also connects that oneness with the world’s knowing and with the Father’s love.

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John 17:21 KJV Meaning