4 occurrences in 10 translations

'Difficult' in the Bible

The words of a man’s mouth are like deep waters [copious and difficult to fathom];The fountain of [mature, godly] wisdom is like a bubbling stream [sparkling, fresh, pure, and life-giving].

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Holman Christian Standard Bible®, Copyright © 1999, 2000, 2002, 2003, 2009 by Holman Bible Publishers.