People can say things that sound Christian and call themselves Christian as they tell others what to do, but if they don't pray often and live the Gospel, they harm others and the Church, Pope Francis said.

Concelebrating his morning Mass Dec. 5, Pope Francis prayed that God would give all Christians "the grace of humility" to build their lives on the rock that is Christ.

The pope's homily focused on the Gospel story of Jesus scolding the Pharisees who knew all of the commandments, but did not live them.

Modern-day Pharisees know the right words, he said, but by not putting them into practice, "they do harm; they trick us and make us believe that we have a beautiful home, but it is without a foundation" because it is not built on rock.

"The rock is Jesus Christ. The rock is the Lord."