For the entrance to the tent, you are to make a curtain embroidered with blue, purple, and scarlet yarn, and finely spun linen.
Two veils are here ordered to be made, 1. One for a partition between the holy place and the most holy, which not only forbade any to enter, but forbade them so much as to look into the holiest of all, Exo 26:31, Exo 26:33. Under that dispensation, divine grace was veiled, but now we behold it with open face, Co2 3:18.
Commenting on Exodus 26:31-37
an hanging for the door of the tent--Curtains of rich and elaborate embroidery, made by the women, are suspended over the doors or entrances of the tents occupied by Eastern chiefs and princes. In a similar style of elegance was the hanging finished which was to cover the door of this tabernacle--the chosen habitation of the God and King of Israel.
And thou shalt make an hanging for the door of the tent, [of] blue, and purple, and scarlet, and fine twined linen, wrought with needlework. (n) This hanging or veil was between the holy place, and there where the people were.