This verse is not just focused only to fathers, but also to the mothers, as well. Since the father is the head of the family, it is emphasized to them. But the point is to not provoke your children to anger. Do not exasperate them to the point of resentment with demands that are trivial or unreasonable or humiliating or abusive. Nor, by showing favoritism or indifference to any of them. But instead, bring them up tenderly, with lovingkindness in the discipline and instruction of the Lord. Then, the Lord will bless your family and your children will produce good fruit as they grow up.