Do not be yoked together with unbelievers. For what do righteousness and wickedness have in common? - 2 Corinthians 6:14, NIV
One of God’s principles for marriage is that those who have established a right relationship with God through faith in Jesus Christ are not to marry those who are not in a right relationship with God. The reason for this principle was explained logically by Amos when he said, “Do two walk together unless they have agreed to do so?” (Amos 3:3, NIV) For someone who has real faith in God to marry, or “walk with,” another person who is in rebellion against God would mean a lifetime of compromise on everything from how to spend time and money, to setting priorities and standards. If there is no basic agreement on an issue as significant as a person’s relationship with God, then there can be no agreement on lesser issues, and a compromise would have to be made to preserve the marriage. That compromise would inevitably lead to neglect of God’s Word.
So . . . make your marriage a triangle, with Jesus Christ at the apex. As you and your spouse grow closer to God you will grow closer together.
From God's Story