Of what are the twelve gates composed?

Answer

"And the twelve gates were twelve pearls: every several gate was of one pearl." Rev. 21: 21.

To whom did Christ become the author of salvation?
How may one know that this does not refer to the earthly sanctuary ?
What promise is made to the willing and obedient?
What takes place at the sounding of the trumpet?
10. As we near the closing scenes of human probation, why may we expect an increase in demoniacal manifestations?
What will cause the Christian to grow?
What will be excluded from this city?

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