Arcana Coelestia # 1230
1230. That by “Arpachshad” is signified memory-knowledge, cannot be so well confirmed from the Word, but is evident from the series of things that precede and that follow.
Ezekiel 27:10
10
Persia and Lud and Put were in your army, your men of war: they hanged the shield and helmet in you; they set forth your comeliness.