Jesus frequently heals those who have asked him to 'have pity', and he acts because he feels compassion for persons. Even God is described in terms of this mercy in another of the foundational parables. Love is the fundamental thing of all Christianity. In Hosea, God's love is seen in God's appearing being as sure as the dawn, and God's love coming to us like the showers, like the spring rains that water the earth. The love in question here is a specific kind of love.
Love is a verb, an action.
This love is the particular praxic love that swells within a person at the sight of another person's unjustly inflicted suffering, driving its subject to eradicate that suffering for no other reason than that it exists, and precluding any excuse for not doing so. Can you even imagine that kind of love. The action that swells within a person at the sight of another person's unjustly inflicted suffering, driving its subject to eradicate that suffering for no other reason than it exists, and precluding any excuse for not doing so. By beginning to experience Jesus. We will never know.