An argument started among them as to which of them might be the greatest. But Jesus, knowing what they were thinking in their heart, took a child and stood him by His side, and said to them, “Whoever receives this child in My name receives Me, and whoever receives Me receives Him who sent Me; for the one who is least among all of you, this is the one who is great.” (Lk 9:46–48; NASB,1995)
There is something about human nature where we want to know where we fit in the "pecking order." We try to become "number one" in all we do; sports, job, games, society. Of course, not all of us want to be "top dog" in everything we do, but we still want to know what rung we are on when it comes to the progression ladder. In the Scripture, the disciples are joining in with the rest of the world and wanting to know who is "top banana." Jesus changes everything. He says it is not the one who is the best or the greatest here on earth, which will become the greatest in heaven but the one who is least. Wow, that goes against everything we know, everything we are taught. We have to become the least? I'm not sure they teach a class on that. It means I have to serve others . . . and enjoy it. It means I have to be willing to go out of my way and serve others and not think of myself.
Now there is nothing wrong with wanting to excel in life and "be all we can be," but we need to do things with the heart of Jesus. That means we don't walk all over someone just to get to the top. If we show kindness and compassion to everyone and become humble and caring, we show others what Jesus is like. And when we start accepting others for who they are and not rejecting them for what they've done, we again show them the heart of Jesus.
These are some ways in which we become least and at the same time, greater.