Goodwin defended the most extreme measures of the army leaders. In his "Might and Right Well Met" (1648), which was answered by John Geree, he applauded Pride's Purge. He was one of the puritan divines who, in the interval between the sentence and execution of the king, offered him their spiritual services. Goodwin mentions in his "Ὑβριστοδίκαι. The Obstrvctovrs of Justice" (30 May 1649), that he had an hour's conversation or more with Charles, but was not impressed by his visit. He firmly contended in the same tract for the sovereign rights of the people, quoted approvingly John Milton's "Tenure of Kings and Magistrates" (13 February 1649), and maintained that the proceedings against Charles followed the spirit of the law if not the letter. "Two Hymns or Spiritual Songs" (1651) were sung in his congregation on 24 October 1651, the thanksgiving day for the victory at the Battle of Worcester.