'Double' in the Bible

They made all thy double boards of cypress-trees of Senir; they took cedars from Lebanon to make masts for thee.

Ships of Tarshish are thy double walls of thy merchandise, And thou art filled and honoured greatly, In the heart of the seas.

Double hooks, a single handbreadth in length, were installed all around in this portion of the temple area.

The great hall and the sanctuary each had a double door,

And it shall come to pass that every living thing which moveth, whithersoever the double river shall come, shall live. And there shall be a very great multitude of fish; for these waters shall come thither, and the waters of the sea shall be healed; and everything shall live whither the river cometh.