It is crucial that parents recognize how utterly important their own love for each other is to their children. This is one of the most important Christian parenting tips I can pass on to you. Never forget: Children derive immense benefit in seeing that mom and dad have a deep commitment and love for each other.
Dr. Howard Hendricks, a professor at Dallas Theological Seminary, tells this story:
I had a student come to me and say, “I have a problem. I love my wife too much.”
I blinked. “Run that by again. I hear it so seldom.”
I then took him to the Ephesians passage: “Love your wife as Christ also loved the Church.” “Do you love her that much?” I asked.
“Oh, no, of course not!” the student said.
I said, “Get with it!”
The marital relationship between husband and wife is of immense importance to your child’s emotional wellbeing. You see, the parent-child bond is largely dependent on the quality of his parents’ marital bond. A child’s most basic security is in knowing his parents love each other. He is assured by this that he will never be abandoned, and is a part of a strong, satisfying relationship. It is in such a family that parent-child intimacy is free to grow and flourish.
So, I offer a simple exhortation. To increase your intimacy with your child, let your child regularly see your own intimacy with your spouse. Your heartfelt intimacy with your spouse will be fertile soil for the growth of parent-child intimacy.
 Howard Hendricks, Heaven Help the Home! (Wheaton, IL: Victor Books, 1982), p. 34.
— Dr. Ron Rhodes