The Saviour's Heart invites us to return to the Father's love, which is the source of every authentic love: "In this is love, not that we loved God but that he loved us and sent his Son to be the expiation for our sins" (1 Jn 4:10). Jesus ceaselessly receives from the Father, rich in mercy and compassion, the love which he lavishes upon human beings (cf. Eph 2:4; Jas 5:11). His Heart particularly reveals the generosity of God towards sinners. God's reaction to sin is not to lessen his love, but to expand it into a flow of mercy which becomes the initiative of the Redemption.
to the word of God and learn to offer with Christ themselves and the whole of their lives (Sacrosanctum Concilium, n. 48). There they are nourished at the paschal banquet of the Redeemer's Body and Blood and, sharing fully the love which beats in his Heart, they strive to be ever more effective evangelizers and witnesses of solidarity and hope.
St. John Paul II on the Solemnity of the Sacred Heart