Gleanings, by Bahá’u’lláh, 46-136
Passages on God and His Manifestations.
All Things Made New, by John Ferraby, Chapter XIV
Commentary, with quotations, on different types of Covenant,
including the Eternal Covenant.
The Eternal Covenant, by Lowell Johnson
Includes an appendix that traces the concept of Covenant from
the time of Adam using Bahá’í, biblical, and Qur’ánic quotes.