Essence of Christianity...

Of late I was reading a book titled "Spiritual Stamina" in which the author focused on the
essence of Christianity. I was stuck by the beautiful saying of the author. Suppose if we ask
what is the core of Christianity we may answer saying LOVE. But the author puts it better
in his words as it is said dat, the Theology of Christianity is MERCY (Compassion) and the
Ethics of Christianity is Gratitude. Yes it is beautifully put by the author as compassion and
Gratitude.