Diligence in the work of God, and, activity during life : A sermon, occasioned by the much-lamented death of the Reverend Mr. Aaron Burr, A.M. president of the College of New-Jersey. Who died September 24, M,DCC,LVII. In the forty-third year of his age. : Deliver'd in Nassau-Hall, at a meeting of the trustees of the college, Dec. 15, 1757; and, published by their desire. /