In an address on the Solemnity of the Nativity of John the Baptist, he spoke about how John was to herald Christ to the world. He said we should follow this example of John and bear "witness to the truth without compromise." But, he didn't stop there. He more emphatically stated that we should follow John's example in denouncing the "transgressions of God's commandments" even if those who we are denouncing are people in power.
Thus, when he accused Herod and Herodius of adultery, he paid for it with his life, sealing with martyrdom his service to Christ, who is the truth in person.The Pope wishes that "the Church of our time know how to be ever faithful to Christ and testify with courage to his truth and his love for all."