"Not by might, not by power..."
It is worth noting that Martin Luther King Jr. preached his last sermon in a Church of God in Christ facility. (The Church of God in Christ is the largest Pentecostal denomination in the U.S.) In some photos you can see a banner with a Bible verse hanging over Dr. King's head -- a verse which could be considered the theme of the Pentecostal movement since its inception: "Not by might, not my power, but by my Spirit saith the Lord" (Zechariah 4:6). In the early days of the movement Pentecostals took this verse to mean that moving in the power of the Spirit precluded violence -- a message that meshes powerfully with Dr. King's life and legacy.
In honor of MLK Day.