Mark 13:11 in the King James Version
But when they shall lead you, and deliver you up, take no thought beforehand what ye shall speak, neither do ye premeditate: but whatsoever shall be given you in that hour, that speak ye: for it is not ye that speak, but the Holy Ghost.
Context
10 The Good News must first be preached to all the nations.
11 When they lead you away and deliver you up, don’t be anxious beforehand or premeditate what you will say, but say whatever will be given you in that hour. For it is not you who speak, but the Holy Spirit.
12 “Brother will deliver up brother to death, and the father his child. Children will rise up against parents and cause them to be put to death.