The least of these are the poor, the hungry, the homeless, the sick, the imprisoned, and the oppressed. In Matthew 25:35-40, Jesus says:
For I was hungry and you gave me something to eat, I was thirsty and you gave me something to drink, I was a stranger and you invited me in, I needed clothes and you clothed me, I was sick and you looked after me, I was in prison and you came to visit me.’
“Then the righteous will answer him, ‘Lord, when did we see you hungry and feed you, or thirsty and give you something to drink? When did we see you a stranger and invite you in, or needing clothes and clothe you? When did we see you sick or in prison and come to visit you?’
“The King will reply, ‘Truly I tell you, whatever you did for one of the least of these brothers and sisters of mine, you did for me.'”
Jesus taught us that when we help those in need, we are helping Him. He also taught that we should love our neighbors as ourselves (Mark 12:31). This means that we should love, regardless of social status.
In the Bible, there are many examples of people who showed compassion for the least of these. For example, the Good Samaritan helped a man who had been beaten and robbed, even though he was a stranger to him (Luke 10:25-37). Ruth took care of her mother-in-law, Naomi, even though she was a widow from a foreign land (Ruth 1:16-18). And Job showed compassion for the poor and needy, even though he had lost everything himself (Job 29:12-16).
When we show compassion for the least of these, we are following the example of Jesus and obeying His commands. We are also making the world a better place.