The Bishop of Elphin and Achonry is the guest speaker at the Knock Novena this afternoon.
Today is family day during the nine-day novena, which is attracting around 150,000 people.
The Dioceses of Elphin and Achonry are also making their annual pilgrimage to the shrine today.
Bishop Kevin Doran says he'll speak about the importance of family during 3 o'clock Mass there this afternoon: