The best (and shortest) verse to help a Christian marriage succeed is found in Ephesians 5:33, “each individual among you also is to love his own wife even as himself, and the wife must see to it that she respects her husband.” This is a call for husbands to love their wives. It is a call for wives to respect their husbands. Why these commands? It’s pretty simple. Women need love. Men need respect.
So husbands, I encourage you to love your wife. Sacrifice for your wife. Serve your wife. Care for your wife. Wives, I encourage you to respect your husband. Encourage your husband. Support your husband. Submit yourself to your husband.
These things will lead you on the path toward a happy marriage.