What is the Divine Mercy?

 The message and devotion to Jesus as The Divine Mercy
is based on the writings of Saint Faustina Kowalska, an
uneducated Polish nun who, in obedience to her spiritual director wrote a diary of about 600 pages recording the
revelations she received about God’s mercy. Even before
her death in 1938, the devotion to The Divine Mercy had
begun to spread.

Divine Mercy Devotional

The message of mercy is that God loves us — all of us —
no matter how great our sins. He wants us to recognize that
His mercy is greater than our sins, so that we will call upon
Him with trust, receive His mercy, and let it flow through us to
others. Thus, all will come to share His joy. It is a message
we can call to mind simply by remembering ABC.

A — Ask for His Mercy. God wants us to approach
Him in prayer constantly, repenting of our sins and
asking Him to pour His mercy out upon us and upon
the whole world.

B — Be merciful. God wants us to receive His mercy
and let it flow through us to others. He wants us to
extend love and forgiveness to others just as He does
to us.

C — Completely trust in Jesus. God wants us to know
that the graces of His mercy are dependent upon our
trust. The more we trust in Jesus, the more we will
receive.

(The Above information came from – The Divine Mercy Devotional  click the link for more resources.)