This document is a summary of the first session of the X3pure Couples Series by Dave and Ann Wilson. It introduces the concept of incorporating biblical principles into marriage. The first principle discussed is "All In," which is based on Colossians 3:23-24. To get the full benefits of marriage and one's relationship with Christ, both partners must give 100% to the marriage. This requires risk, as demonstrated through a story about a couple's 25th wedding anniversary, but can lead to richness when both parties are fully committed.