Frumentius

And possibly a layman (as Frumentius and Edesius in the Indies) may be the instrument of men's conversion.

In the time of Constantine, one Frumentius was sent to preach to the Indians, and met with great success.

Bearing the happy tidings, Frumentius appeared in Alexandria, where he was received with open arms by the patriarch Athanasius.

But Athanasius was safe elsewhere, and Frumentius wisely stayed at home.