Mark 9:37
Whoever welcomes one of these little children in my name welcomes me; and whoever welcomes me does not welcome me but the one who sent me — the welcoming of the child is the practical application of servant-of-all greatness: it means serving those who cannot advance you. Welcomes me is the identification of Jesus with the lowly — the pattern of Matthew 25:40 (whatever you did for the least of these, you did for me). The chain of welcome (child → Jesus → Father) communicates that receiving the lowly is a divine act with cosmic implications.