Matthew 18:2-6New Revised Standard Version Catholic Edition (NRSVCE)
2 He called a child, whom he put among them, 3 and said, “Truly I tell you, unless you change and become like children, you will never enter the kingdom of heaven. 4 Whoever becomes humble like this child is the greatest in the kingdom of heaven. 5 Whoever welcomes one such child in my name welcomes me.
Temptations to Sin
6 “If any of you put a stumbling block before one of these little ones who believe in me, it would be better for you if a great millstone were fastened around your neck and you were drowned in the depth of the sea.