Of what material is the wall constructed?

Answer

"And the building of the wall of it was of jasper: and the city was pure gold, like unto clear glass." Verse

What test should therefore be applied to every professed teacher of truth?
What is the final result or fruit of sin?
How then do all become children of God?
What are the wages of sin?
What has He commanded men to observe in memory of this great work?
By whose Spirit did the prophets write?
When are the righteous to be recompensed?

Questions & Answers are from the book Bible Readings for the Home Circle