Zacharias knew that this newly-born child should grow up to give God's message to the people. He said in his song:
"And you, O child, shall be called the prophet of God;
For you shall go before the Lord Christ, to make ready a way for him;
You shall give to his people the good news of a Saviour,
And the forgiveness of their sins
Because of the tender mercy of God."
John the Baptist in the desert
In the home of Zacharias and Elizabeth the baby John grew up a strong, noble boy. Very early they told him of the angel's visit, and of the command that throughout his life he was not to taste wine nor any strong drink. He was under a vow or pledge of special service for God; and one sign of his pledge was to be his not tasting wine nor even eating grapes. Another sign was in leaving his hair to grow long and never cutting it. Everyone who saw him would know by these signs that he was pledged to a life of peculiar service to God.
When John became a young man he went away from his home and lived in the desert, alone with his own thoughts and with God. Very likely, his father and mother died before he went to live alone, for at the time of his birth they were old people and could not live many years.
John lived upon the plainest of food, the locusts that could be gathered in the field, and were boiled, to be eaten by the poorest people. He ate also the honey made by the wild bees and stored by them in hollow trees and holes in the rocks. All those years of his young manhood, John was thinking upon the work to which God had called him, talking with God and learning God's will; so that when the time came, he could give God's message to the people.
Plowing in Bible time