7530. 'And the magicians could not stand before Moses on account of the sores' means that they could not remain present - those who misused Divine order by producing something similar to the real thing in outward appearance. This is clear from the meaning of 'being unable to stand before someone' as being unable to remain present; from the meaning of 'the magicians' as those who misuse Divine order by producing something similar to the real thing in outward appearance, dealt with in 7296, 7337; and from the meaning of 'sores as filthiness together with blasphemy, dealt with above in 7524.