Sixth book of the Old Testament (6)
I believe the answer is:
joshua
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">sixth book of the old testament</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for joshua that I've seen before include "He led the Israelites after the death of Moses" , "Fighter at Jericho" , "Sixth book of the Old Testament" , "Conqueror of Jericho" , "Biblical character" .)