Ambrose, venerated as Saint Ambrose, was the Bishop of Milan, a theologian, and one of the most influential ecclesiastical figures of the 4th century.

The Solemnity of the Immaculate Conception celebrates the belief in the sinless lifespan and Immaculate Conception of the Virgin Mary, celebrated on December 8, nine months before the feast of the Nativity of Mary, celebrated on September 8. It is one of the most important Marian feasts in the liturgical calendar of the Roman Catholic Church celebrated worldwide.

The Gospel According to St Matthew 11 2-10

Messengers from John the Baptist

2 Now when John heard in prison about the deeds of the Christ, he sent word by his disciples 3 and said to him, “Are you he who is to come, or shall we look for another?” 4 And Jesus answered them, “Go and tell John what you hear and see: 5 the blind receive their sight and the lame walk, lepers are cleansed and the deaf hear, and the dead are raised up, and the poor have good news preached to them. 6 And blessed is he who takes no offense at me.”

The Gospel According to St Matthew 7 13-14

The Narrow Gate

13 “Enter by the narrow gate; for the gate is wide and the way is easy,[a] that leads to destruction, and those who enter by it are many. 14 For the gate is narrow and the way is hard, that leads to life, and those who find it are few.

Francis Xavier (April 7, 1506 – December 3, 1552), venerated as Saint Francis Xavier, was a Spanish Catholic priest, missionary and saint from Navarre who was the co-founder of the Society of Jesus. He was beatified by Pope Paul V on 25 October 1619 and canonized by Pope Gregory XV on 12 March 1622.

In 1624, he was made co-patron of Navarre. Known as the "Apostle of the Indies" and "Apostle of Japan", he is considered to be one of the greatest missionaries since Paul the Apostle.

The Gospel According to St Matthew 7:15-20

A Tree and Its Fruit

15 “Beware of false prophets, who come to you in sheep’s clothing but inwardly are ravenous wolves. 16 You will know them by their fruits. Are grapes gathered from thorns, or figs from thistles? 17 So, every sound tree bears good fruit, but the bad tree bears evil fruit. 18 A sound tree cannot bear evil fruit, nor can a bad tree bear good fruit. 19 Every tree that does not bear good fruit is cut down and thrown into the fire. 20 Thus you will know them by their fruits.