Tomorrow, for the 243rd anniversary celebration of Independence Day, President Trump will give a speech on the National Mall. As with all such addresses in the modern age, Trump’s remarks will pared to the presidential gold standard for Fourth of July speeches—Calvin Coolidge’s speech on the 150th anniversary of the Declaration of Independence.

Coolidge was so famous for his taciturnity that he earned the nickname “Silent Cal.” But when he did speak he could be moving and profound. Such was the case in his speech in Philadelphia, Pennsylvania on July 5, 1926. Here are six quotes you should know from the speech about God, religion, and the Declaration.

1. “The American Revolution represented the informed and mature convictions of a great mass of independent, liberty-loving, God-fearing people who knew their rights, and possessed the courage to dare to maintain them.”

2. “While the written word was the foundation, it is apparent that the spoken word was the vehicle for convincing the people. This came with great force and wide range from the successors of Hooker and Wise. It was carried on with a missionary spirit which did not fail to reach the Scotch-Irish of North Carolina, showing its influence by significantly making that Colony the first to give instructions to its delegates looking to independence. This preaching reached the neighborhood of Thomas Jefferson, who acknowledged that his “best ideas of democracy” had been secured at church meetings.”

3. “When we take all these circumstances into consideration, it is but natural that the first paragraph of the Declaration of Independence should open with a reference to Nature’s God and should close in the final paragraphs with an appeal to the Supreme Judge of the world and an assertion of a firm reliance on Divine Providence. Coming from these sources, having as it did this background, it is no wonder that Samuel Adams could say, ‘The people seem to recognize this resolution as though it were a decree promulgated from heaven.’”

4. “No one can examine this record and escape the conclusion that in the great outline of its principles the Declaration was the result of the religious teachings of the preceding period. The profound philosophy which Jonathan Edwards applied to theology, the popular preaching of George Whitefield, had aroused the thought and stirred the people of the Colonies in preparation for this great event. No doubt the speculations which had been going on in England, and especially on the Continent, lent their influence to the general sentiment of the times. Of course, the world is always influenced by all the experience and all the thought of the past. But when e to a contemplation of the immediate conception of the principles of human relationship which went into the Declaration of Independence we are not required to extend our search beyond our own shores. They are found in the texts, the sermons, and the writings of the early colonial clergy who were earnestly undertaking to instruct their congregations in the great mystery of how to live. They preached equality because they believed in the fatherhood of God and the brotherhood of man. They justified freedom by the text that we are all created in the divine image, all partakers of the divine spirit.”

5. “Equality, liberty, popular sovereignty, the rights of man — these are not elements which we can see and touch. They are ideals. They have their source and their roots in the religious convictions. They belong to the unseen world. Unless the faith of the American people in these religious convictions is to endure, the principles of our Declaration will perish. We can not continue to enjoy the result if we neglect and abandon the cause.”

6. “Our forefathers came to certain conclusions and decided upon certain courses of action which have been a great blessing to the world. Before we can understand their conclusions we must go back and review the course which they followed. We must think the thoughts which they thought. Their intellectual life centered around the meeting-house. They were intent upon religious worship. While there were always among them men of deep learning, and later those who paratively large possessions, the mind of the people was not so much engrossed in how much they knew, or how much they had, as in how they were going to live. While scantily provided with other literature, there was a wide acquaintance with the Scriptures. Over a period as great as that which measures the existence of our independence they were subject to this discipline not only in their religious life and educational training, but also in their political thought. They were a people who came under the influence of a great spiritual development and acquired a great moral power. No other theory is adequate to explain prehend the Declaration of Independence. It is the product of the spiritual insight of the people.”