What was the purpose of the veil on Moses' face?
The veil on Moses' face was to keep Israel from seeing that the Law was fading away and that something better had now come in its place. It kept them from seeing that the Law had come to an end, preventing them from perceiving the better thing that replaced it.
Les explains that the veil was only to keep Israel from seeing that the Law was fading away and that something better had now come in its place. It kept them from seeing that the Law had come to an end. Even to this day, when Moses is read in synagogue worship, that same veil remains upon their heart, keeping them from seeing that it is all passed off the scene. Paul wrote this about 60 A.D., but the truth remains the same.
And not as Moses, which put a vail over his face, that the children of Israel could not stedfastly look to the end of that which is abolished: