in this artical we have this..
Rediscovering the Dignity and Complexity of Children: Resources from the Christian Tradition
by Macia J. Bunge
"4) Fully Human and Made in the Image of God
[32] Fourth, although children are developing, they are, at the same time, whole and complete human beings made in the image of God. Thus, they are worthy of dignity and respect. The basis of this claim is Genesis 1:27, which states that God made humankind in the image of God (Genesis 1:27). Thus, all children, regardless of race, gender, or class, are fully human and worthy of respect. Although children are developing, they are, at the same time, whole and complete human beings.
Heart of a Child
by Linda Lee Nelson
here i found this ..."two additional studies on theologians who, although they hold quite pessimistic views on the nature of children, do not endorse physical discipline: the Reformer John Calvin and the 18th-century American Calvinist Jonathan Edwards. Barbara Pitkin writes that "Calvin himself appears not to have advocated the use of physical force in response to sin in children; though he recognized the need for parental discipline, his explicit remedies were baptism and education (albeit strict and structural) into faith and morality.""
" Discipline is not about punishment but about promoting an orderly life. . . But to exact compliance through fear of punishment only nurtures the lower self-consciousness, which naturally seeks to avoid painful experiences. Parents ought to instill in their children a love for the good, irrespective of rewards and punishments."