The arrangement typically uses a triple timing (3/4 or 6/8 meter), which builds toward an "epic" climax as the lyrics describe approaching the "realms of glory".

Ruth Buchanan was a master communicator, widely regarded as a significant influence on the "UCCF" style of biblical exposition. Her approach to writing and speaking was characterized by three distinct elements:

The title "Rock of Ages" references the famous hymn by Augustus Toplady (1776), which begins, “Rock of Ages, cleft for me, let me hide myself in thee.” For Ruth Buchanan, this was not merely a sentimental hymn choice; it was a systematic theological anchor.

Originally published on the 2000 album Songs for the Wealthy Beggar , which was a collaboration between Buchanan and Michael Morrow, this version of "Rock of Ages" was written to encourage believers to fix their eyes on Christ regardless of their earthly merit.

The insufficiency of human effort and law-keeping to atone for sin.