Heart-suffering because of sin is the best proof that the Holy Spirit dwells in your heart.
Johann ArndtGive me ... a compassionate heart, quickly moved to grieve for the woes of others and to active pity for them, even as our Lord Jesus Christ beheld our poverty and hasted to help us. Give me grace ever to alleviate the crosses and difficulties of those around me, and never to add to them; teach me to be a consoler in sorrow, to take thought for the stranger, the widow, and the orphan; let my charity show itself not in words only but in deed and truth.
Johann ArndtBut since the world, which thou art to strive against, is not without thee, but within thee, it follows, that it is also to be conquered not without, but within thee.
Johann ArndtIn short, all things that please the natural man in this world, are, to a true Christian, only so many crosses and temptations, allurements of sin and snares of death, that continually exercise his virtue.
Johann Arndt