Matthew 10:19 - Joseph Benson’s Commentary on the Old and New Testaments

But take no thought how or what ye shall speak When you are compelled to appear before such personages be not anxiously careful about your defence there, or how you shall answer for yourselves, but cheerfully confide in the divine direction, which shall certainly be given you, and shall be abundantly sufficient for you. The apostles being, in general, persons of a low education, and wholly unacquainted with the laws of the different countries whither they were to go, and with the forms of their courts, might have been much terrified at the thought of appearing before kings, governors, and other persons of distinction, and might have feared lest, in the hurry of their spirits, they should be betrayed into some impropriety of language or behaviour, by which the cause of the gospel might be injured. Nothing, therefore, could have been more proper, or better suited to the circumstances in which they were placed, than the promise which our Lord here makes them, which, if received in faith, was sufficient to prevent a thousand anxious apprehensions. Observe, reader, neither at such a time as is here referred to, nor on any sudden call, need the true disciples of Jesus be careful what or how to answer.