The readings for this homily: https://bible.usccb.org/bible/readings/022226.cfm

Does Biblical evidence exist for the Catholic Church's claim that the Pope is Christ's Vicar here on earth? Yes, beginning with whenever the Twelve Apostles are named in the Bible, Peter, the first Pope, always heads the list. Father Chris Alar, MIC, explains that, in order for there to be unity, every institution has to have a leader, and the Roman Catholic Church, with the Pope as her leader, is the oldest continuously running institution in the history of the world.

Fr. Chris Alar, MIC, takes us deep into the heart of the Church’s great mystery — the inseparable link between the Sacred Heart of Jesus and the message of Divine Mercy. Long before St. Faustina received the vision of Christ’s mercy, St. Margaret Mary Alacoque revealed the burning love of His Heart. Both messages — separated by centuries — form one divine revelation of the same truth: God is Love, and His love takes action through mercy.