STRONGS G169:
													
												
									    		ἀκάθαρτος, 
-όν, (
καθαίρω) [from Sophocles down], in the 
Sept. equivalent to 
טָמֶא, 
not cleansed, unclean; 
a. in a ceremonial sense, that which must be abstained from according to the levitical law, lest impurity be contracted: 
Acts 10:14; 
Acts 11:8 (of food); 
Acts 10:28; 
1 Corinthians 7:14 (of men); 
2 Corinthians 6:17 (from 
Isaiah 52:11, of things pertaining to idolatry); 
Revelation 18:2 (of birds), 
b. in a moral sense, 
unclean in thought and life (frequent in Plato): 
Ephesians 5:5; 
τὰ ἀκάθαρτα τῆς πορνείας, 
Revelation 17:4 (according to the true reading); 
πνεύματα, demons, bad angels [in twenty-three passages of the Gospels, Acts, and Revelation]: 
Matthew 10:1; 
Matthew 12:43; 
Mark 1:23, 
26; 
Mark 3:11, etc.; 
Luke 4:33, 
36; 
Luke 6:18, etc.; 
Acts 5:16; 
Acts 8:7; 
Revelation 16:13; 
Revelation 18:2 (
πνεύματα πονηρά in 
Matthew 12:45; 
Luke 7:21; 
Luke 8:2; 
Luke 11:26; 
Acts 19:12f, 
15f). 
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