Sentence:  Being convinced that salvation <WSD>is</WSD> alone by accepting Christ as Saviour , and being convicted by the Holy Spirit of my lost condition , I do repent of all effort to be saved by any form of good works , and just now receive Jesus as my personal Saviour and salvation as a free gift from Him . 
Meaning of the word marked with <WSD> tags:  have the quality of being; (copula, used with an adjective or a predicate noun)