"I shall sing forever the Lord's mercy." (Ps 89 [88]) This Sunday is popularly known as Mercy of God Sunday. Between 1930 and 1938 Christ appeared to Sister Faustina, a Sister of Mercy in Poland who initiated the Divine Mercy devotion. She was canonized on April 30, 2000, the Sunday after Easter, the Feast of Divine Mercy.
The first fifteen days of the month fall during the season of Lent which is represented by the liturgical color violet or purple — a symbol of penance, mortification and the sorrow of a contrite heart. The remainder of April falls during the Easter season which is represented by the liturgical color white — the color of light, a symbol of joy, purity and innocence (absolute or restored).