A treatise of the Holy Trinity in unity : Clearly proving Jesus Christ the Son to be the Almighty or most high God. And in like manner vindicating the divinity of the Holy Ghost. Manifesting them both to be coequall and coeternall with God the Father. Against the blasphemous opinions of John Bidle, the Socinians and Arrians. By Beniamin Austin, pastor of the Church of God at Castle-Ashbey in Northamptonshire.