The Lesson of the Tunic.
The tunic, or inner vest, was to be of fine linen, and of spotless white. Both the material and the hue denoted purity. God's priests must be clothed in purity from top to toe. Purity must wrap them round on every side. This purity may be hidden—unseen of man, or nearly unseen. But God sees it and honours it. The tunic, though it must be all of white, shall not lack its ornamentation. It is to be diapered with a pattern, like the best damask cloths, and so to be rich and costly.
The Lessons of the Girdle.