'Testifying' in the Bible

And when both Silas and Timotheus came down from Macedonia, Paul was pressed in respect of the word, testifying to the Jews that Jesus was the Christ.

testifying to both Jews and Greeks repentance towards God, and faith towards our Lord Jesus Christ.

And having appointed him a day many came to him to the lodging, to whom he expounded, testifying of the kingdom of God, and persuading them concerning Jesus, both from the law of Moses and the prophets, from early morning to evening.