A tryall of faith : by the touch-stone of the Gospel, the word of faith. Whereby Christians may discerne whether or no, they have a saving faith. First preached in the parish church of St Nic. Col. Abby London, by William Chibald pastor there; and now published for the further benefit of that his congregation, and all other that confesse with their mouth the Lord Iesus, and with their heart beleeve on him vnto salvation.