An Attempt to prove the affirmative part of that question, whether there be any certainty, that a sinner under the advantages of the Gospel and Common Grace, striving with all his might, ... to please God, shall obtain such a measure of divine assistance, as is necessary to fit him for eternal Salvation ... Containing some remarks upon a late piece intitled, A Vindication of Gospel-Truth ... Done in a letter to Mr. Jedidiah Mills