'Washing' in the Bible

Thy teeth as a row of the shorn ones That have come up from the washing, For all of them are forming twins, And a bereaved one is not among them.

His eyes as doves by streams of water, Washing in milk, sitting in fulness.

Thy teeth as a row of the lambs, That have come up from the washing, Because all of them are forming twins, And a bereaved one is not among them.