Zelgharnine proceeded on a third journey, and came between two mountains, where he found a people who could not understand the language of Zelgharnine and his hosts, except through interpretation. They were more developed than the other two kind of people that he had encountered before.

      The verses here imply that they were industrious a people, and to some extent skilled in the metal works. They could provide iron blocks or bricks, and have melted copper. They could make use of blowers, to increase the heat, and turn iron to red-hot or even melt it.

      They were a peaceful people too, and were willing to provide security and peace, by paying special taxes and tributes to their conquerors. They therefore made known to Zelgharnine that Gog and Magog made mischief in their land, and disturbed their security every now and then. They asked the king to close up the wide gap which was between the two mountains from where they were invaded by the wild tribes. They added that they were ready to pay special taxes, or tributes, for the construction of a barrier in the gap.

      Zelgharnine knew his power to have been given him through the Mercy and Grace of God; and that, his duty was to help and to protect his subjects without imposing heavy taxes and hard duties on them. He therefore considered their request, and said to them:ِ

      ``That in which my Lord has established me is better. Just give me a hand of power so as to build a protective barrier between you and between them.''

      He then managed to fill the gap between the two mountains with pieces of iron. By his order, fire was blown so that the iron pile turned red-hot and melted to a mixture, making out a firm wall; high enough not to be scaled. He then asked for melted copper, which was poured upon the red-hot barrier, to make it hard enough, not to be pierced through! It was finally finished to resist any attempt to climb it, or to dig it through.

      Zelgharnine did that great constructional work that his weak subjects needed, but claimed no credit for himself in doing that, as if he knew it to be his duty! He only tried to turn the attentions through the work, to God, who provided them with the necessary means and materials for their security and protection:ِ

      ``He said; This is a Mercy from my Lord. Then when the promise of my Lord comes to pass, He will level it with the ground.''

      In other word he said; what remains forever is God and God's Mercy; and even this iron barrier has a limited life, and when its hour comes, it will crumble to dust.