What an astonishing event in the Genesis story! Sarah's laughter is sometimes looked at as a sign of doubt, but it is also a sign of joy and deep honesty. Sarah's laughter comes before she has the time to think about protocol, before she paused to think how her honest reaction might be interpreted by a critic who might find fault in her. This is the likely cause of her subsequent fear and back-peddling. But perhaps the Lord was laughing, too, as he delivered this news to this elderly couple, knowing that this story would be repeated and remembered as a sign of promises fulfilled by one who is faithful.

In the Gospel today, we admire the sincere expression of the centurion, "Lord, I am not worthy to have you enter under my roof; only say the word and my servant will be healed." He was a man with authority, but he instinctively recognized greater authority. His accurate assessment was not just empty words intended to curry favour, but instead represented an honest request for Jesus' help.