Luke 10:30ff. The story of the Good Samaritan is full of deep truth. Perhaps sometimes we are so intent on mining those nuggets that we miss the simple wealth strewn on the surface -- that we ought to be good helpful and compassionate neighbours.
Why should we help? be compassionate? be a good neighbour?
The condition of the hurting: "stripped of his raiment...wounded and...half dead" v. 30; The world is a sinful world full of hurting people. If this was a perfect place perhaps there would be no need. But it isn't and there is.
The unconcern of others: "a certain priest...saw him, he passed by on the other side...a Levite...came and looked on him, and passed by on the other side." vs. 31, 32; Jesus commanded Peter to "follow me", but Peter shifted attention by questioning what John was supposed to do. Jesus replied, "What is that to thee? Follow thou me." We are not responsible for others.
The command of the Saviour: "Go, and do thou likewise" v. 37 (cf. v. 27: "Thou shalt love...thy neighbour as thyself.") When Jesus commanded Peter to "follow me", Peter wanted to shift attention to John. Jesus replied, "What is that to thee? Follow thou me." The command of the Saviour ought to be enough. Everything else is secondary.