John 15:11

⁹ As the Father hath loved me, so have I loved you: continue ye in my love.

¹⁰ If ye keep my commandments, ye shall abide in my love; even as I have kept my Father’s commandments, and abide in his love.

These things have I spoken unto you, that my joy might remain in you, and that your joy might be full.

¹² This is my commandment, That ye love one another, as I have loved you.

¹³ Greater love hath no man than this, that a man lay down his life for his friends.

Do read the surrounding verses too, because the context often says more than a single verse.

Compare

BSB: I have told you these things so that My joy may be in you and your joy may be complete.
KJV: These things have I spoken unto you, that my joy might remain in you, and that your joy might be full.
WEB: I have spoken these things to you, that my joy may remain in you, and that your joy may be made full.
ASV: These things have I spoken unto you, that my joy may be in you, and [that] your joy may be made full.
DARBY: I have spoken these things to you that my joy may be in you, and your joy be full.
BLB: These things I have spoken to you⁺ so that My joy may be in you⁺ and your⁺ joy may be full.

ÅB: Dette har jeg talt til dere for at min glede kan være i dere, og deres glede kan bli fullkommen.
OTB: Jeg har talt disse tingene til dere for at min glede kan være i dere og at deres glede kan være fullkommen.
B1930: Dette har jeg talt til eder forat min glede kan være i eder, og eders glede kan bli fullkommen.

Romans 15:13
Now the God of hope fill you with all joy and peace in believing, that ye may abound in hope, through the power of the Holy Ghost.
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John 17:13
And now come I to thee; and these things I speak in the world, that they might have my joy fulfilled in themselves.
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John 16:24
Hitherto have ye asked nothing in my name: ask, and ye shall receive, that your joy may be full.
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1 Peter 1:8
Whom having not seen, ye love; in whom, though now ye see him not, yet believing, ye rejoice with joy unspeakable and full of glory:
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1 John 1:4
And these things write we unto you, that your joy may be full.
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John 16:33
These things I have spoken unto you, that in me ye might have peace. In the world ye shall have tribulation: but be of good cheer; I have overcome the world.
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2 John 1:12
Having many things to write unto you, I would not write with paper and ink: but I trust to come unto you, and speak face to face, that our joy may be full.
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1 Thessalonians 5:16
Rejoice evermore.
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