Matthew 10:19 in the King James Version
But when they deliver you up, take no thought how or what ye shall speak: for it shall be given you in that same hour what ye shall speak.
Context
18 Yes, and you will be brought before governors and kings for my sake, for a testimony to them and to the nations.
19 But when they deliver you up, don’t be anxious how or what you will say, for it will be given you in that hour what you will say.
20 For it is not you who speak, but the Spirit of your Father who speaks in you.