'Useless' in the Bible

and if the ministration of the death, in letters, engraved in stones, came in glory, so that the sons of Israel were not able to look stedfastly to the face of Moses, because of the glory of his face -- which was being made useless,

for if that which is being made useless is through glory, much more that which is remaining is in glory.

and are not as Moses, who was putting a vail upon his own face, for the sons of Israel not stedfastly to look to the end of that which is being made useless,

but their minds were hardened, for unto this day the same vail at the reading of the Old Covenant doth remain unwithdrawn -- which in Christ is being made useless --