What you believe boils down into one of two categories: either God created everything or everything spontaneously came into existence. Theism or atheism. Creation or evolution. Your choice of belief will impact your marriage, for better or for worse. Here is one of two posts examining this issue:
How Theism Affects Your Marriage
The all-knowing, all-powerful and all-present Being, aka God, desired something a long time ago which motivated Him to come up with a plan. He executed the plan and thus we have the dimensions, energy, mass, the universe, galaxies, our solar system, Earth, plants, animals, and humans.
Some of His angels were not thrilled the future will involve this new “mankind” being raised above them. So they rebelled against God and the concept of sin became a practiced reality. They passed it to Eve, to Adam and we have the fallen nature to this day.
All-knowing God planned for this to happen and called Jesus the “Lamb slain from the foundation of the world“, meaning before creating the world God planned to have to woo us and purify us from sin with His offer of salvation and grace through Jesus’ death and resurrection to get us on to building character. And He gave us marriage as the training ground to build character.
Genesis 2:23-25 records God’s establishment of perfect marriage, Ephesians 5:31-32 identifies marriage as an analogy between Jesus Christ and the Church, and Revelation 19:7-9, a glimpse of the future, rejoices that the marriage of the Lamb (Jesus) has come.
How does this affect your marriage?
First it means there is a God you are answerable to. He has given you the Bible to help you understand who He is, who you are, how He wants you to relate to Him, and how He wants you to live.
Second it means other people are answerable to God. You are a child of God; your spouse is a child of God. How then shall you treat other people, and especially your spouse?
One day you will stand before God and hear Him ask, “How did you treat My child, your spouse?” He will open the books and read your deeds. Make your deeds good so He will say, “Well done, My good and faithful servant, enter into the joy of your Lord.”
Third it means your marriage with your spouse is practice for marriage with Jesus. How then shall you live? Focus on making your character like His. You have a spouse to practice on. Get to it!
Theism affects your marriage by providing a standard and goal. A very high standard, and an astonishing goal. Theism provides the basis for logic, law, ethics, and morals, for theism saying there is One higher than us Who created everything with a purpose and plan to Whom I must answer.