Now or never: work out your salvation with fear and trembling. Or, A serious exhortation to all poor sinners to lay hold upon Christ Jesus : who is the fountain of all happiness, and who is the only rock from whence doth spring all their comforts. Herein is also laid down several motives declaring the necessity of this work, that it ought not to be put off for to morrow; but that every poor sinner should strive to enter in at the strait gate, now, whilst he hath an opportunity in his hand, lest he be snatch'd away by death, and then it will be too late. The twelfth edition, with additions. By B.R.