A chiasm is a literary structure where the words or themes of the first section of a passage are repeated in reverse order in the second. The center of the chiasm is typically the climax of the passage. In Matthew 10:17-23, the climax is Jesus’ instruction of those who are brought before authorities for their faith that they are not to worry regarding what to say for the Holy Spirit will give them the words when the time comes (Matt 10:19-20).