John 1:6-8, 15

There came a man commissioned and sent from God, whose name was John. [Mal 3:1] This man came as a witness, to testify about the Light, so that all might believe [in Christ, the Light] through him. John was not the Light, but came to testify about the Light.

John testified [repeatedly] about Him and has cried out [testifying officially for the record, with validity and relevance], “This was He of whom I said, ‘He who comes after me has a higher rank than I and has priority over me, for He existed before me.’ ”