His distress of mind on the present occasion proceeded from a higher source than the deficiency of some external formalities in his call. He had now very different thoughts as to the importance of the ministerial office, from what he had entertained when ceremoniously invested with orders. The care of immortal souls, of whom he must give an account to the chief bishop; the charge of declaring “the whole counsel of God, keeping nothing back,” however ungrateful it might be to his hearers; the manner of life, afflictions, persecutions, imprisonment, exile, and violent death, to which the preachers of the protestant doctrine were exposed; the hazard of his sinking under these hardships, and “making shipwreck of faith and a good conscience;”――these, with similar considerations, rushed into his mind, and filled it with anxiety and fear. Satisfied, at length, that {58} he had the call of God to engage in this work, he composed his mind to a reliance on him who had engaged to make his “strength perfect in the weakness” of his servants, and resolved, with the apostle, “not to count his life dear, that he might finish with joy the ministry which he received of the Lord, to testify the gospel of the grace of God.” Often did he afterwards reflect with lively emotion upon this very interesting step of his life, and never, in the midst of his greatest sufferings, did he see reason to repent of the choice which he had so deliberately made. An occurrence which took place about this time contributed to fix his wavering resolution, and induced an earlier compliance with the call of the congregation than he might otherwise have been disposed to yield. Though sound in doctrine, Rough’s literary acquirements were moderate. Of this circumstance the patrons of the established religion in the university and abbey took advantage; and among others, dean John Annand[83] had long proved vexatious to him, by stating objections to the doctrine which he preached, and entangling him with sophisms, or garbled quotations from the fathers. Knox had assisted the preacher with his pen, and by his superior skill in logic and the writings of the fathers, had exposed {59} Annand’s fallacies, and confuted the popish errors. This polemic, being, one day, at a public disputation in the parish church, driven from all his usual defences, fled, as his last refuge, to the infallible authority of the church, which, he alleged, had rendered all further debate on these points unnecessary, in consequence of its having condemned the tenets of the Lutherans as heretical. To this Knox replied, that, before they could submit to such a summary determination of the matters in controversy, it was requisite to ascertain the true church by the marks given in scripture, lest they should blindly receive, as their spiritual mother, “a harlot instead of the immaculate spouse of Jesus Christ.” “For,” continued he, “as for your Roman church, as it is now corrupted,