Let us ask the important question. J. Hart. [Passiontide.] Published in his Hymns, &c, 1759, No. 56, in two parts, the second being "Great High Priest, we view Thee stooping," and headed "Faith and Repentance." Pt. i., in 5 stanzas of 8 lines, asks and answers the important question, "What is it to be a Christian?" and Pt. ii., in 3 stanzas of 8 lines, is a Prayer based upon the answer given in Pt. i. Both parts are in common use, but the second ("Great High Priest, &c"), which is by far the finer of the two, is also by far the more popular. It is in several collections in Great Britain and America.
--John Julian, Dictionary of Hymnology (1907)