“The other part of the true religion is our duty to man.”

§ 1
1780s, Memorial and Remonstrance Against Religious Assessments (1785)
Context: We hold it for a fundamental and undeniable truth, “that Religion or the duty which we owe to our Creator and the Manner of discharging it, can be directed only by reason and conviction, not by force or violence.” The Religion then of every man must be left to the conviction and conscience of every man; and it is the right of every man to exercise it as these may dictate. This right is in its nature an unalienable right. It is unalienable; because the opinions of men, depending only on the evidence contemplated by their own minds, cannot follow the dictates of other men: It is unalienable also; because what is here a right towards men, is a duty towards the Creator. It is the duty of every man to render to the Creator such homage, and such only, as he believes to be acceptable to him. This duty is precedent both in order of time and degree of obligation, to the claims of Civil Society. Before any man can be considered as a member of Civil Society, he must be considered as a subject of the Governor of the Universe: And if a member of Civil Society, who enters into any subordinate Association, must always do it with a reservation of his duty to the general authority; much more must every man who becomes a member of any particular Civil Society, do it with a saving of his allegiance to the Universal Sovereign. We maintain therefore that in matters of Religion, no man’s right is abridged by the institution of Civil Society, and that Religion is wholly exempt from its cognizance. True it is, that no other rule exists, by which any question which may divide a Society, can be ultimately determined, but the will of the majority; but it is also true, that the majority may trespass on the rights of the minority.

Introduction
The Gods (1934)

Virginia Bill of Rights, Article 16 (12 June 1776); Henry was on the committee which drafted the Virginia constitution and he supported this Bill, but it is not clear to what extent he was the author of any portion of it. This statement is also sometimes misattributed to James Madison who quoted it in his arguments for the United States Bill of Rights.
Misattributed

Article 16
Virginia Declaration of Rights (1776)

Source: Dictionary of Burning Words of Brilliant Writers (1895), P. 378.

Vol. 2, Ch. 24 "Oracular Philosophy and the Revolt against Reason"
The Open Society and Its Enemies (1945)
Context: ... the attempt to make heaven on earth invariably produces hell. It leads to intolerance. It leads to religious wars, and to the saving of souls through the inquisition. And it is, I believe, based on a complete misunderstanding of our moral duties. It is our duty to help those who need help; but it cannot be our duty to make others happy, since this does not depend on us, and since it would only too often mean intruding on the privacy of those towards whom we have such amiable intentions.

To My People (July 4, 1973)
Source: Assata: An Autobiography

Mark VII: 1–13, p. 136
Expository Thoughts on the Gospels: St. Mark (1857)

Source: Knots Untied (1877), Ch. XIII: "Worship", p. 295