Divine mercy…

So there is earthly and heavenly mercy: that is, human and divine. What is human mercy? Exactly this: to have care for the sufferings of the poor. What is divine mercy? Without doubt, to grant forgiveness of sins. Whatever human mercy gives away on the journey, divine mercy pays back when we arrive at last in our native land.
— Saint Caesarius of Arles (460-542)

Make the psalms…

Make the psalms your own. Do not sing them as verses composed by another person. Let them be born in your own prayers. When they come from your lips, understand that they were not merely fulfilled temporarily when they were first written. They are being fulfilled now in your daily life.
–Saint John Cassian (c. 360-435)