William Paca was an Episcopalian and a devout Christian.
From: B. J. Lossing, Signers of the Declaration of Independence, George F. Cooledge & Brother: New York (1848) [reprinted in Lives of the Signers of the Declaration of Independence, WallBuilder Press: Aledo, Texas (1995)], page 156:
In 1788, [William Paca] was a member of the convention of Maryland, called to act upon the ratification of the Federaal Constitution. He was a firm advocate there for its ratification, which even took place in November. After the New Constitution had gone into effect, and offices under it were to be filled. President Washington nominated him Judge for the district of Maryland. This office he held until the period of his death, which was in the year 1799, when he was in the sixtieth year of his age. He was a pure and active patriot, a consistent Christian, and a valuable citizen, in every sense of the word. His death was mourned as a public calamity; and his life, pure and spotless, active and useful, exhibited a bright exemplar for the imitation of the young men of America.From: Robert G. Ferris (editor), Signers of the Declaration: Historic Places Commemorating the Signing of the Declaration of Independence, published by the United States Department of the Interior, National Park Service: Washington, D.C. (revised edition 1975), page 114:
At first interred at Wye Hall, Paca's remains now rest in the fmaily burial ground near Wye Plantation.