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 use of this prophecy by the Apostle Peter shows that it referred to Christ?
After receiving a knowledge of the truth, what must one do in order to be sanctified by it?
What question did others raise in opposition to this view?
How had they done this?
What were these stones to commemorate?
What does He indicate as one of its purposes?
How, according to Luke, did Christ answer this question?

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