Matthew 10:19-20

19 When they hand you over, do not worry about how you are to speak or what you are to say; for what you are to say will be given to you at that time;
20 for it is not you who speak, but the Spirit of your Father speaking through you.
New Revised Standard Version Bible, copyright 1989, Division of Christian Education of the National Council of the Churches of Christ in the United States of America. Used by permission. All rights reserved.