Christ crucified, the sum and substance of the Gospel; the Priesthood of Christ, and the sufficiency of his Sacrifice to save, is the main thing I contend for against the Papists, who say, Christ's sacrifice is not sufficient without their sacrifice. Charity saves, says one. Without good works, no salvation, says another. A third says that Christ's sacrifice is not sufficient for our Salvation without believing, that believing saves, and that without believing, we cannot be saved. Ye see, they all urge a necessity of something for salvation besides Christ's Sacrifice, without which something, they say, we cannot be saved; so that they deny the sufficiency of Christ's sacrifice to save, and so deny that Christ does save. For those he saves, he saves by his sacrifice. Also if Christ and something else saves us, Christ saves us not. For he is no Saviour if he be but a part of a Saviour; therefore, in adding something to Christ's sacrifice, they deny the sufficiency of Christ's sacrifice.