There is much information available on David though much of it is not supported by records; much of it is at odds with the remainder. As with many old families, dates and names and places are forgotten or misquoted. Ive done the best I can to give a reasonable bit of history to the man.

David was born in Setauket, a section of Brookhaven in Suffolk County on Long Island in New York, where his parents and grandparents were from. He was born in 1751. About 1753 his family moved to Bloomimg Grove, in Orange County, NY, and then again about 1756 to Middle Smithfield in present-day Monroe County PA.
By 1772, David was licensed to preach in Wantage, Sussex County, NJ in the Baptist faith. His younger brother Ebenezer followed in his footsteps, also preaching in New Jersey. David married on April 21, 1773, location uncertain, to Elizabeth DeWitt. Brother Ebenezer again followed in his brothers footsteps in 1783 when he married Elizabeth's younger sister, Mary DeWitt. David and Elizabeth resided in Wantage for sevrral years, where their first two children, both named Daniel, were born, and died months later.
Come the Revolutionary War, the Battle of Long Island was fought, and lost, on August 27, 1776. It is said that David was an Officer (or a Chaplain), along with four of his five brothers who fought in this battle, and that David was taken prisoner by the British and placed in a prison ship (one account even states the ship was the notorious "The Jersey"). None of this can be substantiated in any form.
What can be verified is that in February 1777, the couples' third child, Peter, was born in Middle Smithfield PA. This son died at about six months of age. With the exception of one later son, the remainder of the couples children thrived.

In the winter of 1789-1790 David went on an expedition to secure land in western New York, in the states' Lake country. He may have taken up a soldiers land grant but this hasn't been verified. He was accompanied by his brother Capt. Timothy Jayne, two Jayne cousins from Orange County, NY, Nathaniel and Samuel, and one other prrson, perhaps his son David. It was on this trip that his brother died in March 1790. His body was brought back home for burial. David did claim some land though the amount varies from 330 to 480 acres, depending on your source.
David remained the minister of the "Church of Christ" in Lower Smithfield PA, until about 1792 when he and his family moved to Tunkahannock PA, then by 1795 they moved to Tioga County, NY. On February 20, 1796, at the home of Jesse Miller(the father-in-law of his daughters Sarah and Mary), David organized the first church in Tioga County, commonly called "The Baptist Church of New Bedford." He would preach here every Sunday for over 14 years, although his farm was located almost 30 miles away.
Sometime between 1810 and 1815, David, his wife and several sons and their families moved once more to Steuben County NY, settling in Barrington. In February of 1826, Elizabeth died. After that, David moved in with his son Timothy until his death in 1837.
David and Elizabeth had 14 children, 10 of whom survived to adulthood.