Let me just say a few words about the First Reading. It come from about the year 525 B..
Back in 597 B.C, The Babylonians led the whole population of Jerusalem off to seventy years of captivity in Babylon. Then in 535 Babylon was conquered by Persia whose emperor ruled that the Israelites should be aided in every way for bringing them back to repossess Jerusalem.
By that time, seventy years later, the original captive Jews had died, and their children and grandchildren, who had made homes for themselves in Babylon, were reluctant to make the uncertain journey back to where there were no dwellings waiting for them.
In today’s reading a new prophet who took Isaiah’s name is urging the people to make the new beginning. Speaking for God, he said, “I have kept you as a covenant to the people, to restore them and to allot heritages to the people.” God promises them straight roads and springs of water.