After Knox left Scotland the courage of the bishops revived, for they actually summoned him again, and on his failure to put in an appearance they were bold enough to burn him in effigy at the Cross of Edinburgh! {103} But this _brutum fulmen_ of theirs could not undo the work which he had wrought. For by his labours at this time, especially in exposing the evil of the Protestants' any longer countenancing, papal worship, he detached from the Romish communion the nucleus round which the Church of Scotland, in a reformed state, was ultimately to form itself. Hitherto there had been no separate organization of the adherents to the Protestant faith; and no formal observance by them of the ordinance of the Supper. But now they had, to some extent at least, committed themselves to ultimate separation from the Church of Rome. As Lorimer says, "They were now a "Congregation" or community of Evangelical Christians, as much bound to one another as they were dissevered from the Church of the popes." And Knox's leaving of them in that condition was as much for their good as his arrival among them some months before had been. Had he remained longer in Scotland at this time, his presence would have undoubtedly provoked an outburst of persecuting fury on the part of the bishops and their friends; while as it was, the seed which he sowed had opportunity to root itself in the hearts of those who had received it at his hands; and this it would assuredly do if they followed the directions which he had left behind him. For before his departure he drew up a letter of wholesome counsel addressed to his brethren in Scotland, in which he exhorts them to give themselves to the daily study of the Bible and worship of God in their homes, and gives them {104} directions as to the holding and conducting of assemblies for public worship and mutual conference and prayer, recommending them to observe a regular course in their reading, and cautioning those who should speak, to do so with modesty, avoiding "multiplication of words, perplexed interpretation, and wilfulness in reasoning." If anything occurred in the text which they could not resolve for themselves, he advised them to apply for assistance to the more learned, and offered if they should refer it to him, to give them such help as he could render, saying, "I will more gladly spend fifteen hours in communicating my judgment with you, in explaining as God pleases to open to me any place of Scripture, than half an hour in any matter beside."