Mark 9:35-37

35 Then sitting down He called the Twelve, and said to them, "If any one wishes to be first, he must be last of all and servant of all."

36 And taking a young child He made him stand in their midst, then threw His arms round him and said,

37 "Whoever for my sake receives one such young child as this, receives me; and whoever receives me, receives not so much me as Him who sent me."