'Twice' in the Bible

and he saith unto me, 'What art thou seeing?' And I say, 'I have looked, and lo, a candlestick of gold -- all of it, and its bowl is on its top, and its seven lamps are upon it, and twice seven pipes are to the lights that are on its top,

And they will come back to you, O daughter of Zion, as prisoners of hope: today I say to you that I will give you back twice as much;