John 5:31

Ἐὰν ἐγὼ μαρτυρῶ περὶ ἐμαυτοῦ, ἡ μαρτυρία μου οὐκ ἔστιν ἀληθής.

RBT Translation:

The True Testament

If I, myself should bear witness around to my own self, the Testament of Myself is not a real/true one.

Julia Smith Literal 1876 Translation:
If I testify of myself, my testimony is not true.

LITV Translation:
If I witness concerning Myself, My witness is not true;