How can Christians mortify their old nature?

To mortify the old nature, as directed in Colossians 3:5, means to put to death the sinful behaviors and desires that oppose a life in Christ. This involves a conscious effort to resist sinful inclinations and to bring every thought and action into submission to Christ's authority. Practically, this may include prayer, seeking accountability within the church, and immersing oneself in Scripture to understand and embrace a way of life that honors God. The process is ongoing and is a reflection of the spiritual struggle all believers face but is essential for fulfilling their calling as risen ones in Christ.