As the dog was an unclean animal, the terms "dog," "dog's head," "dead dog," were used as terms of reproach or of humiliation (1 Samuel 24:14; 2 Samuel 3:8; 9:8; 16:9 ). Paul calls false apostles "dogs" (Philippians 3:2 ). Those who are shut out of the kingdom of heaven are also so designated (Revelation 22:15 ). Persecutors are called "dogs" (Psalm 22:16 ). Hazael's words, "Thy servant which is but a dog" (2 Kings 8:13 ), are spoken in mock humility=impossible that one so contemptible as he should attain to such power.
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
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