More importantly, he was "sent from God."
John himself knew who he was, and what his mission was. He was a messenger from God, sent "to testify."
His life, his words, and his action were evidently marked by his identity. As a result, his life, his words and his action served to fulfill that identity and his mission.
How about me? Do I believe that I am from God with a mission? Are my life, words and actions truthful to that identity? Do my life, words and actions serve that God-given mission?