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James 1:26 If any man among you seem to be religious, and bridleth not his tongue, but deceiveth his own heart, this man’s religion [is] vain.
Eccl 2:15 Then said I in my heart, As it happeneth to the fool, so it happeneth even to me; and why was I then more wise? Then I said in my heart, that this also [is] vanity.