Ecclesiastes 4:12 If a man prevails against one who is alone, two shall withstand him; and a threefold cord is not quickly broken. (WEB KJV JPS ASV DBY YLT RSV)
Ezekiel 42:6 for they 'are' threefold, and they have no pillars as the pillars of the court, therefore it hath been kept back -- more than the lower and than the middle one -- from the ground. (YLT)