In our researches we have availed ourselves of every help in our reach. We have adopted no man's theory as a whole; but after studying the subject, first in the Bible itself and then with the help of others, we have formulated our own views, and shall ask the reader to examine them as carefully and prayerfully while reading as we have done before writing.
We shall not burden our work with quotation marks; but, here and now, acknowledge our indebtedness to Rev. T. O. Summers, Rev. Henry Cowles, and Canon Farrar. When we make any extended quotations from these or other authors, we will make due acknowledgment, but do not feel it necessary to mark every thought suggested by them.
In all our work we have labored to make the Scripture its own interpreter. Often symbols in the New Testament can be explained and understood only by referring to the same symbols as used in the Old Testament.