Someone asked me for money outside the shop and I walked straight past, then felt terrible for the rest of the day. What was I actually supposed to do?

“Is it not to deal thy bread to the hungry, and that thou bring the poor that are cast out to thy house? when thou seest the naked, that thou cover him; and that thou hide not thyself from thine own flesh?”

Isaiah is confronting people who fasted diligently and then wondered why God seemed unimpressed. God's answer redefines the fast entirely, listing bread, shelter and clothing handed to people who are standing in front of them. The phrase about not hiding from your own flesh is the sharpest part: the prophet assumes the instinct to look away, and names the person you looked away from as kin.

“But a certain Samaritan, as he journeyed, came where he was: and when he saw him, he had compassion on him, And went to him, and bound up his wounds, pouring in oil and wine, and set him on his own beast, and brought him to an inn, and took care of him.”

A lawyer asked Jesus who counted as a neighbour, hoping for a boundary he could work with. In the story two respectable men see the wounded traveller and keep walking, and the one who stops is the outsider. What Jesus emphasises is unglamorous and practical: he came where the man was, treated the wounds, paid for the care. Compassion here involves inconvenience, proximity and money.