"What is it that causes trouble in marriages? It is amazing how many people don't seem to know. Essentially, it is one thing: Sin I don't care whether it the sin of pride, hard-hearted unwillingness to forgive or to humble oneself or to admit mistakes, selfishness, lust, or whatever other sin of infidelity there might be, all of these are simply sins. The Word of God is the great cleansing water that washes away our sin and wears down the rough edges in our personalities, which makes us livable for other people."