Exodus 26:4

Catholic Public Domain Version

You shall make loops of hyacinth on the sides at the edges of the curtains, so that they will be able to be joined to one another.

See the chapter Copy

Five curtains shall be joined to one another, and the other five shall be similarly coupled together.

A curtain shall have fifty loops on each of two sides, inserted in such a manner that loop may come against loop, and one can be fitted to the other.

And he made fifty loops along the edge of one canopy, and fifty along the edge of the other canopy, so that they might be joined to one another,