The month of September is dedicated to the Seven Sorrows of Mary. Devotion to the sorrows of the Virgin Mary dates from the twelfth century, when it made its appearance in monastic circles under the influence of St. Anselm and St. Bernard. The Cistercians and then the Servites undertook to propagate it.  It became widespread in the fourteenth and especially the fifteenth centuries, particularly in the Rhineland and Flanders, where Confraternities of the Sorrowful Mother sprang up.  It was in this context that the first liturgical formularies in her honor were composed.  A provincial council of Mainz in 1423 made use of these in establishing a "Feast of the Sorrows of Mary."  Excerpted from The Church at Prayer, Vol. IV A.G. Martimort.

First Sorrow: The Prophecy of Simeon
“And you yourself a sword will pierce” (Luke 2:35).

Second Sorrow: The Flight into Egypt
“The angel of the Lord appeared to Joseph in a dream and said, ‘Rise, take the child and his mother, flee to Egypt, and stay there until I tell you. Herod is going to search for the child to destroy him’” (Matthew 2:13).

Third Sorrow: Search for the Child in Jerusalem
“After three days they found him in the temple, sitting in the midst of the teachers, listening to them and asking them questions. When his parents saw him, they were astonished, and his mother said to him, ‘Son, why have you done this to us? Your father and I have been looking for you with great anxiety’” (Luke 2:46, 48).

Fourth Sorrow: Mary Meets Jesus on His Way to the Cross
“And carrying the cross himself . . .” (John 19:17). “A large crowd of people followed Jesus, including many women who mourned and lamented him” (Luke 23:27).

Fifth Sorrow: Standing at the Foot of the Cross
Standing by the cross of Jesus were his mother and his mother’s sister, Mary the wife of Clopas, and Mary of Magdala. When Jesus saw his mother and the disciple there whom he loved, he said to his mother, ‘Woman, behold, your son.’ Then he said to the disciple, ‘Behold, your mother.’ And from that hour the disciple took her into his home” (John 19:25–27).

Sixth Sorrow: The Crucifixion and Descent from the Cross
After this, Joseph of Arimathea, secretly a disciple of Jesus for fear of the Jews, asked Pilate if he could remove the body of Jesus. And Pilate permitted it. So he came and took his body” (John 19:38).

Seventh Sorrow: Assisting at the Burial of Christ
“The women who had come from Galilee with him followed behind, and when they had seen the tomb and the way in which his body was laid in it, they returned and prepared spices and perfumed oils” (Luke 23:55–56).

The Holy Father's Intentions for the Month of September 2018

Universal: Young People in Africa
That young people in Africa may have access to education and work in their own countries.

The feasts on the General Roman Calendar celebrated during the month of September are:

September 2 - Twenty-Second Sunday in Ordinary Time, Sunday
September 3 - Gregory the Great, Memorial
September 8 - Birth of Mary, Feast
September 9 - Twenty-Third Sunday in Ordinary Time, Sunday
September 12 - Most Holy Name of Mary, Opt. Mem.
September 13 - John Chrysostom, Memorial
September 14 - Exaltation of the Holy Cross, Feast
September 15 - Our Lady of Sorrows, Memorial
September 16 - Twenty-Fourth Sunday in Ordinary Time, Sunday
September 17 - Robert Bellarmine, Opt. Mem.
September 19 - Januarius, Opt. Mem.
September 20 - Andrew Kim Taegon, Paul Chong Hasang and Companions, Memorial
September 21 - Matthew, Feast
September  23 - Twenty-Fifth Sunday in Ordinary Time, Sunday
September 26 - Cosmas and Damian, Opt. Mem.
September 27 - Vincent de Paul, Memorial
September 28 - Wenceslaus; Lawrence Ruiz and Companions; St. Simón de Rojas O.SS. (Spain), Opt. Mem.
September 29 - Michael, Gabriel and Raphael, Feast
September 30 - Twenty-Six Sunday in Ordinary Time, Sunday