The principle of the Texas Constitution that best applies in this scenario is The Bill of Rights protects against religious requirements for government officials.
In this case, Jamison's ability to run for office is being denied based on his religion, which directly relates to the protection of individual rights outlined in the Bill of Rights. The First Amendment, which is part of the U.S. Bill of Rights, guarantees the freedom of religion and prohibits the government from imposing religious tests for holding office. Thus, Jamison’s successful lawsuit reinforces the protection against discrimination based on religion in the context of public office.