The King was becoming impatient with the slow progress, especially in view of his conviction that the Pilgrimage of Grace had been substantially exacerbated due to the rebels' exploitation of popular religious ignorance. With the bishops showing no signs of completing their task, Cromwell obtained official approval for the Matthew Bible as an interim measure in 1537, the year of its publication under the pseudonym "Thomas Matthew", actually John Rogers. Cromwell had helped to fund the printing of this version. The Matthew Bible combined the New Testament of William Tyndale, and as much of the Old Testament as Tyndale had been able to translate before being put to death the prior year for "heresy."