Then go through with it a second time, to see what light it throws on
the subject of Revivals. Pursue the same course with other books, and in
respect to other subjects. In this way you will sometimes be surprised
to find how much you have overlooked in your previous reading.

It will be perceived that I have laid out a very extensive and laborious
work. But this is the great business of our lives; and, indeed, the
contemplation of the glorious truths revealed in the Bible will form the
business of eternity; and even that will be too short to learn the
length and breadth, and height and depth, of the ways of the Almighty.

Your affectionate Brother.




LETTER V.

_Prayer and Fasting._

"In everything, by prayer and supplication, with thanksgiving, let
your requests be made known unto God."--PHIL. 4:6.


MY DEAR SISTER,

The subject of this letter is one of vital interest to every Christian.
It is, therefore, of the utmost consequence, that it be both well
understood and diligently practised. It seems hardly necessary to urge
prayer upon the Christian _as a duty_. Every true Christian must feel it