'Testifying' in the Bible

Also with many more other words he was testifying and exhorting, saying, 'Be saved from this perverse generation;'

long time, indeed, therefore, did they abide speaking boldly in the Lord, who is testifying to the word of His grace, and granting signs and wonders to come to pass through their hands.

And when both Silas and Timotheus came down from Macedonia, Paul was pressed in the Spirit, testifying fully to the Jews Jesus the Christ;

testifying fully both to Jews and Greeks, toward God reformation, and faith toward our Lord Jesus Christ.

and having appointed him a day, they came, more of them unto him, to the lodging, to whom he was expounding, testifying fully the reign of God, persuading them also of the things concerning Jesus, both from the law of Moses, and the prophets, from morning till evening,