NASB 1995
"I am He who testifies about Myself, and the Father who sent Me testifies about Me."

American Standard Version
I am he that beareth witness of myself, and the Father that sent me beareth witness of me.

Berean Study Bible
I am One who testifies about Myself, and the Father, who sent Me, also testifies about Me.”

Douay-Rheims Bible
I am one that give testimony of myself: and the Father that sent me giveth testimony of me.

English Revised Version
I am he that beareth witness of myself, and the Father that sent me beareth witness of me.

King James Bible
I am one that bear witness of myself, and the Father that sent me beareth witness of me.

World English Bible
I am one who testifies about myself, and the Father who sent me testifies about me."

Young's Literal Translation
I am one who is testifying of myself, and the Father who sent me doth testify of me.'

John 8:18 Additional Translations ...