Berean Standard Bible (BSB)
He came as a witness to testify about the Light, so that through him everyone might believe.
World English Bible (WEB)
The same came as a witness, that he might testify about the light, that all might believe through him.
Strong's King James
The same{G3778} came{G2064}{(G5627)} for{G1519} a witness{G3141}, to{G2443} bear witness{G3140}{(G5661)} of{G4012} the Light{G5457}, that{G2443} all{G3956} men through{G1223} him{G846} might believe{G4100}{(G5661)}.
The F.O.G *
(7) this one came for testimony in order to testify concerning the Light so that everybody might believe through him.
The F.O.G Message *
Young's Literal Translation
this one came for testimony, that he might testify about the Light, that all might believe through him;