, then widely known throughout the
country, say in a public address, "Prayer is the power that moves the
arm that moves the world." Can we accept that to-day as a definition of
a rational view of the relation in which we stand to God? Many of you
will remember that not long ago the churches and the scientific men of
England and America were much stirred and roused over a discussion
concerning the practical efficacy of prayer. There was much talk of
what was called the "prayer-gauge." I think it was Professor Tyndall
who proposed to test the question as to whether prayer was a real power
in the physical world; and his test, if I remember rightly, was
something like this. He said: You churchmen claim that prayer is able
to heal the sick. Now, he said, let us take a certain hospital. We will
divide it, a certain number of wards on one side, and a certain number
of wards on the other, equalizing so far as we can the nature of the
illnesses which afflict the patients. You now concentrate as much as
you please, and as many as you please, the prayers on certain wards in
the hospital, and we will commit the rest to the ordinary treatment of
the physicians; and we will see if you are able to produce any results.

Against a certain type and theory of prayer I suppose a test like that
is legitimate enough; and this type, this theory, is the one that has
prevailed throughout Christendom largely for a good many hundreds of
years. I suppose you can remember in your boyhood some of you are as
old as I that it was not an uncommon thing for the minister to pray
earnestly for certain things that intelligent men would hardly think of
praying for in the same fashion to-day. It was not an uncommon thing, a
few years ago, to have a special prayer- meeting during a drought in
the endeavor to prevail upon God to send the rain; and there was
certainly a Scriptural warrant for it; for Elijah is represented in the
Old Testament as having, by the power of prayer, shut up the heavens
for three years and a half, and then as bringing rain again as the
result of his petition. If you study the Book of James, and remember,
when you do study it, that it was not written by the apostle, but by
some unknown author towards the middle of the second century, you will
see that he teaches that, if any one is sick, you are not to send for a
physician. The brethren are to assemble, the invalid is to be anointed
with oil, they are to pray over him, and the explicit