Little is known about John Everard's origins, but we do know that he was educated at Clare College, Cambridge, receiving his BA in 1600, his MA in 1607 and his DD in 1619. Some time before 1618 he became reader at St Martins in the Fields in London, where he was a popular but controversial preacher. In 1621, for example, he was imprisoned for preaching against the planned Catholic marriage of Prince Charles (later Charles I). He petitioned the king for pardon, and was released, only to re-offend and be sent back to jail. He subsequently moved from St Martins to Kensington, then later to the living at Fairstead in Essex. In 1636 he was charged with a variety of heresies (familism, Antinomianism, Anabaptism), brought before the High Commission Court, deprived of his benefits and subjected to a substantial fine.
From The Continuum Encyclopedia of British Philosophy in Oxford Reference.