In all the dioceses of the United States of America, January 22 (or January 23, when January 22 falls on a Sunday) shall be observed as a particular day of penance for violations to the dignity of the human person committed through acts of abortion, and of prayer for the full restoration of the legal guarantee of the right to life. The Mass "For Peace and Justice" (no. 22 of the "Masses for Various Needs") should be celebrated with violet vestments as an appropriate liturgical observance for this day.
General Instruction of the Roman Missal, no. 373
God our Father, you lovingly knit us in our mothers’ womb. Grant that each human embryo will be respected as a human being, and not dismissed as a product to be manipulated or destroyed. Grant us the courage and conviction to be your voice for our sisters and brothers at the very earliest stages of their development, and for all defenseless unborn children.
Jesus, Divine Healer, foster in those conducting medical research a commitment to finding cures in ways that respect these little ones and all your vulnerable children.
Holy Spirit, grant us the wisdom to develop morally sound treatments for conditions now thought to be incurable. Help us persevere in defending human life while alleviating suffering.
Show mercy to all who have cooperated in killing our tiniest brothers and sisters. Bring them and all who support destructive embryo research to true conversion. Grant them the ability to see the immeasurable dignity of all human beings even in the first days of life.
Father, we ask this in Jesus’ name, through the Holy Spirit. Amen.