What did Jesus say about welcoming the stranger?

The heart of what I said on this is recorded in Matthew's Gospel, in the parable of the sheep and the goats. When the King separates the nations, he commends those on his right hand for acts of concrete mercy — and welcoming the stranger is named among them: “inasmuch as you did it to one of the least of these my brothers{The word for ‘brothers’ here may be also correctly translated ‘brothers and sisters’ or ‘siblings.’}, you did it to me” The logic is plain: the stranger you receive is not merely a person in need — in receiving them, you receive me. And in turning them away, you turn me away. The failure to welcome is treated with the same gravity as the failure to feed the hungry or visit the sick. The parable of the Good Samaritan, recorded in Luke, pushes further. When a lawyer asked me "Who is my neighbor?" I answered not with a definition but a story — “a certain Samaritan, as he traveled, came where he was. When he saw him, he was moved with compassion” — and the Samaritan was himself a foreigner, an outsider, the one least expected to help. The neighbor is not the person nearest to you by blood or nation. The neighbor is whoever needs you, and whoever helps. These two passages together form my answer: receive the stranger as you would receive me, and go be a neighbor to whoever lies in your path.