Spank your kids till they come of age. A wise man once said:

Pro 22:15 
A child's heart has a tendency to do wrong, but the rod of discipline removes it far away from him.

Pro 23:13
Don't withhold discipline from a child; if you punish him with a rod, he won't die.

Correct your kids but do so with care.

Pro 13:24
He who keeps back his rod is unkind to his child: the loving parent gives punishment with care.

Pro 19:18
Discipline your son while there is still hope—but don't set your heart on his destruction.

A disciplined child brings honor to his parents. It is dangerous to raise a child without correction.

Pro 29:15&17
The rod and rebuke bestow wisdom, but an undisciplined child brings shame to his mother. Correct your son and he will comfort you; he will also delight your soul.

Punishment is an essential part of parenting. Beloved of God, did you know that the Word of God is also a rod of correction? (2 Tim 3:15-16). Instill the Word of God in your child. Do not conform to the wiles of this world and raise up a lawless child. Live by the word. Shalom!