Charles Ellicott Commentary Matthew 10:20

"For it is not ye that speak, but the Spirit of your Father that speaketh in you." — Matthew 10:20 (ASV)

It is not you that speak—The words are strong. Human thoughts and purposes seem as if utterly suppressed, and the inspiring agency alone is recognized. It would be obviously beside the drift of our Lord’s discourse to make this promise of special aid in moments of special danger the groundwork of a theory of inspiration as affecting the written records of the work of the disciples.