We do, then, with all earnestness, though without reproaching our brethren, protest against the irrational and unscriptural doctrine of the Trinity. "To us," as to the Apostle and the primitive Christians, "there is one God, even the Father." With Jesus, we worship the Father, as the only living and true God. We are astonished, that any man can read the New Testament, and avoid the conviction, that the Father alone is God.

"Unitarian Christianity", an address to The First Independent Church of Baltimore (5 May 1819)