An exhortation address'd particularly unto the people of London, occasion'd by the late proclamation, for a fast, &c : On the 6th of February next, that they, and others, may both attend it, and live for the future so religiously, as to objects not of God's Judgment, but mercy. Humbly inscrib'd to the Right Honourable the Lord Mayor of London. By a clergyman of Gloucestershire.