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International Standard Bible Encyclopedia
un - sûr´tin , un - sûr´tin - ti : Adjective ἄδηλος , ádēlos , 2 Maccabees 7:34; 1 Corinthians 14:8; adverb adḗlōs , 1 Corinthians 9:26; noun adēlótēs , 1 Timothy 6:17; adēlos means "not clear," and so "uncertain." Also the King James Version The Wisdom of Solomon 9:14 for ἐπισφαλής , episphalḗs , "unsteady," the Revised Version (British and American) "prone to fall."
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Orr, James, M.A., D.D. General Editor. Entry for 'Uncertain; Uncertainty'. International Standard Bible Encyclopedia. https://www.studylight.org/encyclopedias/eng/isb/u/uncertain-uncertainty.html. 1915.