This is an excerpt from a sermon Dr. Martin Luther King Jr. delivered at New Covenant Baptist Church in Chicago on April 9, 1967. His subject was “The Three Dimensions of a Complete Life.”

Over in the 21st chapter of the book of Revelation, it opens by saying, “And I saw a new heaven and a new earth. And I, John, saw the holy city, the new Jerusalem, coming down from God out of heaven.”
And one of the greatest glories of this new city of God that John saw was its completeness. It was not up on one side and down on the other, but it was complete in all three of its dimensions. And so in this same chapter as we looked down to the 16th verse, John says, “The length and the breadth and the height of it are equal.” In other words, this new city of God, this new city of ideal humanity is not an unbalanced entity, but is complete on all sides. Now I think John is saying something here in all of the symbolism of this text and the symbolism of this chapter. He’s saying at bottom that life as it should be and life at its best is a life that is complete on all sides.
And there are three dimensions of any complete life to which we can fitly give the words of this text: length, breadth, and height. Now the length of life as we shall use it here is the inward concern for one’s own welfare. In other words, it is that inward concern that causes one to push forward, to achieve his own goals and ambitions. The breadth of life as we shall use it here is the outward concern for the welfare of others. And the height of life is the upward reach for God. Now you got to have all three of these to have a complete life.

Now let’s turn for the moment to the length of life. I said that this is the dimension of life where we are concerned with developing our inner powers. In a sense this is the selfish dimension of life. There is such a thing as rational and healthy self-interest. A great Jewish rabbi, the late Joshua Leibman, wrote a book some years ago entitled “Peace of Mind.” And he has a chapter in that book entitled “Love Thyself Properly.”
And what he says in that chapter, in substance, is that before you can love other selves adequately, you’ve got to love your own self properly. You know, a lot of people don’t love themselves. And they go through life with deep and haunting emotional conflicts. So the length of life means that you must love yourself.
And you know what loving yourself also means? It means that you’ve got to accept yourself. So many people are busy trying to be somebody else. God gave all of us something significant. And we must pray every day, asking God to help us to accept ourselves. That means everything. Too many Negroes are ashamed of themselves, ashamed of being black. A Negro got to rise up and say from the bottom of his soul, “I am somebody. I have a rich, noble, and proud heritage. However exploited and however painful my history has been, I’m black, but I’m black and beautiful.” This is what we’ve got to say. We’ve got to accept ourselves. And we must pray, “Lord, Help me to accept myself every day; help me to accept my tools.” ….
Now the other thing about the length of life: after accepting ourselves and our tools, we must discover what we are called to do. And once we discover it we should set out to do it with all of the strength and all of the power that we have in our systems. And after we’ve discovered what God called us to do, after we’ve discovered our life’s work, we should set out to do that work so well that the living, the dead, or the unborn couldn’t do it any better.
Now this does not mean that everybody will do the so-called big, recognized things of life. Very few people will rise to the heights of genius in the arts and the sciences; very few collectively will rise to certain professions. Most of us will have to be content to work in the fields and in the factories and on the streets. But we must see the dignity of all labor. …

Now the breadth of life is the outward concern for the welfare of others, as I said. And a man has not begun to live until he can rise above the narrow confines of his own individual concerns to the broader concerns of all humanity. …
Oh, there will be a day, the question won’t be, “How many awards did you get in life?” Not that day. It won’t be, “How popular were you in your social setting?” That won’t be the question that day. It will not ask how many degrees you’ve been able to get. The question that day will not be concerned with whether you are a “Ph.D.” or a “no D.” … The question that day will not be, “How much money did you accumulate? How much did you have in stocks and bonds?” The question that day will not be, “What kind of automobile did you have?”
On that day the question will be, “What did you do for others?” …
Now I can hear somebody saying, “Lord, I did a lot of things in life. I did my job well; the world honored me for doing my job. I did a lot of things, Lord; I went to school and studied hard. I accumulated a lot of money, Lord; that’s what I did.” It seems as if I can hear the Lord of Life saying, “But I was hungry, and ye fed me not. I was sick, and ye visited me not. I was naked, and ye clothed me not. I was in prison, and you weren’t concerned about me. So get out of my face. What did you do for others?” This is the breadth of life.

You know, a lot of people master the length of life, and they master the breadth of life, but they stop right there. Now if life is to be complete, we must move beyond our self-interest. We must move beyond humanity and reach up, way up for the God of the universe, whose purpose changeth not. …
A lot of people have neglected this third dimension. And you know, the interesting thing is a lot of people neglect it and don’t even know they are neglecting it. They just get involved in other things. And you know, there are two kinds of atheism. Atheism is the theory that there is no God. Now one kind is a theoretical kind, where somebody just sits down and starts thinking about it, and they come to a conclusion that there is no God. The other kind is a practical atheism, and that kind goes out of living as if there is no God. And you know there are a lot of people who affirm the existence of God with their lips, and they deny his existence with their lives. …
And I’m here to tell you today that we need God. Modern man may know a great deal, but his knowledge does not eliminate God. And I tell you this morning that God is here to stay. A few theologians are trying to say that God is dead. And I’ve been asking them about it because it disturbs me to know that God died and I didn’t have a chance to attend the funeral. …
Go out this morning. Love yourself, and that means rational and healthy self-interest. You are commanded to do that. That’s the length of life. Then follow that: Love your neighbor as you love yourself. You are commanded to do that. That’s the breadth of life. And I’m going to take my seat now by letting you know that there’s a first and even greater commandment: “Love the Lord thy God with all thy heart, with all thy soul, with all thy strength.” I think the psychologist would just say with all thy personality. And when you do that, you’ve got the breadth of life.
And when you get all three of these together, you can walk and never get weary. You can look up and see the morning stars singing together, and the sons of God shouting for joy. When you get all of these working together in your very life, judgement will roll down like waters, and righteousness like a mighty stream.