This essay develops a distinctly Christian theology of free speech in response to mounting threats of censorship across Western societies. We argue that freedom of speech is not merely a political concession of liberal democracies but arises from humanity’s nature as rational agents made in the image of God, created to be seekers and speakers of truth. Speech is both a constitutive feature of human selfhood and an instrumental good through which individuals and communities pursue moral goods and the common good. After examining the biblical purposes of speech, the limits of civil government’s authority, and the moral logic of human rights, we contend that a Christian account of free speech requires a dual affirmation: positively, that individuals have a duty to speak truthfully; and negatively, that governments bear a heavy burden of proof before restricting expression. Free speech thus serves as a shield against government overreach, a safeguard of human fallibility, and a vital condition for truth-seeking in a pluralistic world. While not absolute, free speech must enjoy a presumption of liberty if societies are to order themselves toward truth and resist the perennial temptation of tyranny.