Matthew 18:3-5, 10, 14

and said, “I assure you and most solemnly say to you, unless you repent [that is, change your inner self—your old way of thinking, live changed lives] and become like children [trusting, humble, and forgiving], you will never enter the kingdom of heaven. Therefore, whoever humbles himself like this child is greatest in the kingdom of heaven. Whoever receives and welcomes one child like this in My name receives Me

“See that you do not despise or think less of one of these little ones, for I say to you that their angels in heaven [are in the presence of and] continually look upon the face of My Father who is in heaven. [Acts 12:15; Heb 1:14]

So it is not the will of your Father who is in heaven that one of these little ones be lost.