The word is used figuratively of power or authority or office (Isaiah 22:22; Revelation 3:7; Revelation 1:8; comp 9:1; 20:1; Compare also Matthew 16:19; 18:18 ). The "key of knowledge" (Luke 11:52; Compare Matthew 23:13 ) is the means of attaining the knowledge regarding the kingdom of God. The "power of the keys" is a phrase in general use to denote the extent of ecclesiastical authority.
Easton's Bible Dictionary was written by Matthew George Easton, who lived from 1823-1894. This Scottish Presbyterian's other significant literary achievements were his English translations of two of Franz Delitzsch's commentaries. The nearly 4,000 entries cover material from Aaron to Zuzims!Wikipedia
Read More