310. We cannot forget that “mercy is not only the working of the Father; it becomes a criterion for knowing who his true children are. In a word, we are called to show mercy because mercy was first shown to us”.(Misericordiae Vultus 9) This is not sheer romanticism or a lukewarm response to God’s love, which always seeks what is best for us, for “mercy is the very foundation of the Church’s life. All of her pastoral activity should be caught up in the tenderness which she shows to believers; nothing in her preaching and her witness to the world can be lacking in mercy”.(Misericordiae Vultus 10) It is true that at times “we act as arbiters of grace rather than its facilitators. But the Church is not a tollhouse; it is the house of the Father, where there is a place for everyone, with all their problems”.(Evangelii Gaudium 47)
For your reference Amoris Laetitia is online here.