From his Confessio:

“So be amazed, all you people great and small who fear God! You well-educated people in authority, listen and examine this carefully. Who was it who called one as foolish as I am from the middle of those who are seen to be wise and experienced in law and powerful in speech and in everything? If I am most looked down upon, yet he inspired me, before others, so that I would faithfully serve the nations with awe and reverence and without blame: the nations to whom the love of Christ brought me. His gift was that I would spend my life, if I were worthy of it, to serving them in truth and with humility to the end.”