'Well attested' in the Bible

But carefully select from among you, brothers, seven men who are well-attested, full of the Spirit and of wisdom, whom we may put in charge of this necessary task.

And they said - Cornelius, a centurion, a man righteous and fearing God, well-attested by the whole nation of the Jews, hath been divinely instructed by a holy messenger to send for thee unto his house, and to hear words from thee.

who was well-attested by the brethren in Lystra, and Iconium.

And, one Ananias, a man devout according to the law, well-attested by all the Jews that dwelt there,