On 17 September 1698 he entered the university of Leyden, and studied theology at Utrecht under Gerard de Vries and Witsius.
In 1716 Lowman contributed to the second volume of the religious periodical called Occasional Papers, and in 1735 he preached, at Salters' Hall a sermon entitled The Principles of Popery Schismatical.
[1] Lowman was known as an authority on Jewish antiquities, his reputation resting mainly on his ‘Dissertation on the Civil Government of the Hebrews,’ 1740, 2nd edit., with appendix, 1745.
It was written in answer to Thomas Morgan's Moral Philosopher, and said to have been approved by William Sherlock and other Anglican churchmen.
Lowman's ‘Paraphrase and Notes upon the Revelation of St. John’ (1737, 1745; 1791, 1807) was commended by Philip Doddridge; it formed the concluding portion of collective editions of the ‘Commentaries’ of Simon Patrick, William Lowth, Daniel Whitby, and Richard Arnald.