Today Isaac E. Howd, pastor of the Whitehall Baptist Church of New York, delivers a war-themed discourse. “God in Providence” is a sermon delivered “in memory of Sergeant L.S. Gillett, Co. C, 123d Regt., N.Y.V.”  L.S. Sergeant is Leonard S., who was killed earlier this month in the Battle of Chancellorsville. Gillett is one of…