Acknowledgment of God
We the people of the state of Iowa, grateful to the Supreme Being for the blessings hitherto enjoyed, and feeling our dependence on Him for a continuation of those blessings, do ordain and establish a free and independent government, by the name of the State of Iowa.
Article I, section 3.
The general assembly shall make no law respecting an establishment of religion, or prohibiting the free exercise thereof; nor shall any person be compelled to attend any place of worship, pay tithes, taxes, or other rates for building or repairing places of worship, or the maintenance of any minister, or ministry.
Article I, section 4.
No religious test shall be required as a qualification for any office, or public trust, and no person shall be deprived of any of his rights, privileges, or capacities, or disqualified from the performance of any of his public or private duties, or rendered incompetent to give evidence in any court of law or equity, in consequence of his opinions on the subject of religion; and any party to any judicial proceeding shall have the right to use as a witness, or take the testimony of, any other person not disqualified on account of interest, who may be cognizant of any fact material to the case; and parties to suits may be witnesses, as provided by law.
Article VI, section 2.
No person or persons conscientiously scrupulous of bearing arms shall be compelled to do military duty in time of peace: Provided, that such person or persons shall pay an equivalent for such exemption in the same manner as other citizens.