Martin Luther King gave this speech on 3 April 1968 at the Church of God in Christ, in Memphis, Tennessee. The last part of this speech in particular seems eerily prophetic.
He was assassinated the next day on 4 April 1968.
"Why is my language not clear to you? Because you are unable to hear what I say. You belong to your father, the devil, and you want to carry out your father’s desires. He was a murderer from the beginning, not holding to the truth, for there is no truth in him. When he lies, he speaks his native language, for he is a liar and the father of lies."
John 8:43-44