Some will say "tough love" requires hitting a child when they are naughty for instance.
Maybe a touch of wisdom for this thread would be to say that you need to be led by the Spirit with each individual child, with each individual person God makes you responsible for and will hold you accountable for in some way.
What I mean is, when I was a child my father spanked me at least once or twice for misbehaviors I can't even remember now. Did I resent it? FAR from it. All that I remember is that from that time on, when my father said he wanted something to stop I listened. I didn't string him along for an eternity and require nine million "
Stop it, Jeffery!"s from a mother who practiced no discipline other than trying to badger her child into good behavior verbally, which often just engenders increasing rebelliousness in the child more than anything else.
I believe my mother spanked me one time as well, and I DO remember what that was for, and I remember the spanking pretty clearly. That was probably the single best piece of parenting she ever executed in her life. But what I'm saying is that my personality most certainly did not need a bunch Molly coddling. I needed bodily discipline to seriously get my attention.
Maybe there are other personalities that don't have to be dealt with this severely, in which case bodily disciple would be wrong, and actually a sin against them, which all the more would require us to follow the leading of the Holy Spirit in every moment while parenting.
But anyone who teaches that there are
never instances or particular children who need a swift kick in the pants should take a moment to consider how much violence there is in this world, and how much of it could have been prevented had there been a strong authority figure in their lives as a child.