Whoever spares the rod hates their children, but the one who loves their children is careful to discipline them.Proverbs 13:24 (From Bible.com)
A thought: Am I going to be a buddy for my child, or a father? Are we going to be best friends and do whatever they want, or will I guide their behaviour? Whilst its pretty clear not every young child will respond positively to a smack, I need to be willing to discipline them in some way. I want to love my potential children, not hate them by trying to win their favour all the time.
A prayer: Lord God, I am a sinful human being, but becoming a father is a gift from You. I want to follow Your leading in bringing up my children righteously. May I also submit myself to Your discipline, as is right. Amen.