for it is not you who speak, but the Spirit of your Father who speaks in you.
Matthew 10:20
Surrounding context
10:19 But when they deliver you up, do not worry about how or what you should speak. For it will be given to you in that hour what you should speak;
10:20 for it is not you who speak, but the Spirit of your Father who speaks in you.
10:21 "Now brother will deliver up brother to death, and a father his child; and children will rise up against parents and cause them to be put to death.