Little Ones

In Matthew 10:42 Jesus said, “whoever gives one of these little ones only a cup of cold water in the name of a disciple, assuredly, I say to you, he shall by no means lose his reward.” Who is a little one? Is it left open to interpretation? Certainly new Christians are little ones in the faith, but also humble Christians can be little ones in their own eyes. A cup of cold water might be considered the minimum hospitality. Do we welcome “little” disciples as we might define them? What about disciples who are unrighteous and have not grown? If so, Jesus promises that we will surely be rewarded.