I have posted this prayer a number of times.
Prayer for Peace and Protection
From Violence and Terrorism
O almighty and merciful God, Lord of the universe
and of history. All that You have created is good
and Your compassion for the mistakes of humankind
knows no limits. We come to You today to ask You
to keep in peace the world and its people, to keep
far away from the devastating wave of terrorism,
to restore friendship and instill in the hearts of Your
creatures the gift of trust and of readiness to forgive.
O Giver of life, we pray to You also for all those who
have died as victims of brutal terrorist attacks. Grant
them their eternal reward. May they intercede for the
world that is torn apart by conflicts and disagreements.
O Jesus, Prince of Peace, we pray to You for the ones
who have been wounded in these acts of inhuman
violence: children and young people, old people and
innocent people, accidentally involved in evil. Heal
their bodies and hearts; console them with Your
strength and, at the same time, take away any hatred
and a desire for revenge.
Holy Spirit Consoler, visit the families of the victims
of terrorism, families who suffer through no fault
of their own. Wrap them in the mantle of Your Divine
Mercy. Make them find again in You and in themselves
the strength and courage to continue to be brothers
and sisters for others, above all for immigrants, giving
witness to Your love by their lives.
Touch the hearts of terrorists so that they may
recognize the evil of their actions and may turn to the way
of peace and goodness, of respect for the life and
for the dignity of every human being, regardless of religion,
origin, wealth, or poverty.
O God, Eternal Father, in Your mercy hear our prayer which
we raise up to You amidst the deafening noise and
desperation of the world. We turn to You with great
hope, full of trust in Your infinite Mercy.
We entrust ourselves to the intercession of Your Most
Holy Mother. We ask for the gift of peace and
of the elimination from our midst of the sore of terrorism.
Through Christ our Lord. Amen.
(Adapted prayer of Holy Father, Pope Francis, offered
in the Basilica of St. Francis, Kraków, July 30, 2016.)