Having the mind of Christ means being transformed by the Holy Spirit to think, desire, and act like Jesus. Every believer is being transformed into Christlikeness through sanctification, though our old ways still challenge us and require ongoing surrender and renewal.
Having the mind of Christ means being transformed by the Holy Spirit to think, desire, and act like Jesus, growing spiritually in a way that the natural mind cannot grasp. This transformation begins at salvation, when the Spirit indwells the believer and makes us partakers of the divine nature. Like an upgrade to a computer, the mind of Christ rewires our hearts and minds, producing godly qualities, such as humility, compassion, and other fruits of the Spirit, while shaping our perspective toward eternal realities. Yet, believers still contend with their old, sinful nature and the influences of the world, requiring ongoing renewal and surrender. Through this lifelong process of sanctification, God faithfully shapes us into Christlikeness, ensuring that every believer grows in discernment, holiness, and conformity to His character.
Think of the human mind as a computer and the Holy Spirit as a sort of anti-virus program that can be uploaded to the human hard drive. Once the program is uploaded, that "mind" can then affect all the computer's systems, taking out harmful applications and replacing them with good, functional applications. Continuing the analogy, the mind of Christ rewrites our hard drives, so we are capable of understanding, or interfacing with, God Himself. We gain new desires and qualities, like humility (Philippians 2:5), compassion (Matthew 9:36) and other godly "fruit" (Galatians 5:22-23). We have a new purpose that is aligned with His (Luke 19:10), and we can see clearly the reality before us that this world is temporal and flawed, and we are meant for an eternal world (1 John 2:15–17).
Having the mind of Christ is not something that is reserved only for "perfect" people. Any and every believer has access to the mind of Christ through faith. However, we also still have the old mind. We still give in to the lure of sin. We may also be hindered by false doctrines (Galatians 5:7–12) or choose to use our freedom in unhealthy ways (Galatians 5:13–15). This is why Paul exhorts the Roman believers, "I appeal to you therefore, brothers, by the mercies of God, to present your bodies as a living sacrifice, holy and acceptable to God, which is your spiritual worship. Do not be conformed to this world, but be transformed by the renewal of your mind, that by testing you may discern what is the will of God, what is good and acceptable and perfect" (Romans 12:1–2). Our minds need to be consistently renewed, moving away from the mind of the flesh and into the mind of Christ. Ultimately, all who have the mind of Christ, those who belong to God, will be sanctified, or changed, by the new program that has been installed by the Holy Spirit (2 Timothy 2:19; Hebrews 10:10, 14). The process unfolds over a lifetime, and God is faithful to bring it to completion (Philippians 1:6).