A fast of Gods chusing plainly opened for the help of those poor in spirit whose hearts are set to seek the Lord their God in New-England in the solemn ordinance of a fast : wherein is shewed 1. The nature of such a fast. 2. The testimony God will give thereunto of his gracious acceptation 3. The special seasons wherein God will bear witness to such a fast. 4. Some helps to faith that it shall be so. 5. Why such a fast is so acceptable and successfull. 6. How much this concerns Gods people in New-England