Sentence:  When the bells ring, the wood-work thereof shaketh and grapeth (no defect, but perfect of structure), and exactly <WSD>chocketh</WSD> into the joynts again; so that it may pass for the lively embleme of the sincere Christian, who, though he hath "motum trepidationis", of "fear and trembling", stands firmly fixt on the basis of a true faith. 
Meaning of the word marked with <WSD> tags:  To fill up, as a cavity.