How was Christ's first advent to be heralded?

Answer

"The voice of him that crieth in the wilderness, Prepare ye the way of the Lord, make straight in the desert
a highway for our God." Isa. 40: 3.

What is God declared to be?
What illustration of this is given in the Bible?
Was the Sabbath designed to be a day for public worship?
What, through the prophet Isaiah, does the Lord call the Sabbath?
How long was Jerusalem to be trodden down of the Gentiles?
What is to be the reward of those whose works are good?
What is the height of the wall?

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