A Just Reply To Mr. John Flavell's Arguments, By Way Of Answer To A Discourse Lately Published, Entituled, A Solemn Call, &c. Wherein It is further plainly proved, That the Covenant made with Israel at Mount Sinai, as also the Covenant of Circumci- sion made with Abraham, whereon so much stress is laid for the Support of Infants Baptism, are no other than two several Editions of the Covenant of Works; and consequently, that no just Argument can thence be de- duced for the Justification of that Practice. Together, with a Reply to Mr. Joseph Whiston's Reflections on the forementioned Discourse, in a late small Tract of his, Entituled, The right Method for the proving of Infants Baptism. As also, a Reply to the several Propositions and Arguments by him insisted on in his Answer to Mr. Cox; whereby he pretends to have clearly and fully proved, That the Covenant of Circuncision established with Abra- ham, Gen. 17. 7 is the Covenant of Grace