The necessity and encouragement of utmost venturing for the churches help : together with the sin, folly, and mischief of self-idolizing : applyed by a representation of 1. some of the most notorious nationall sins endangering us, 2. the heavy weight of wrath manifested in our present calamities, yet withall grounds of, 3. confidence, that our church shall obtain deliverance in the issue, 4. hopes that the present Parliament shall be still imployed in the working of it : all set forth in a sermon preached to the honorable House of Commons, on the day of the monethly solemn fast, 21 June, 1643 /