“And having this confidence, I know that I shall abide and continue with you all for your furtherance and joy of faith.” (Philippians 1:25)

Bible expositors often call Philippians “the joy book.” In it, Paul mentions “joy” or “rejoice” 14 times—all while he was imprisoned! Paul certainly found his source of joy from way outside his circumstances. He also mentioned “mind” seven times. This might suggest that the key to joy lies in how we choose to think. The epistle offers three key mindsets that should bring believers joy.

The first mindset is unity. “Stand fast in one spirit, with one mind striving together for the faith of the gospel” (Philippians 1:27). In particular, our mindset should unify around the gospel—the good news that a holy God saves vile sinners who repent and trust His only Son Jesus, the resurrected One.

The second mindset that sets us up for joy is humility. “Let this mind be in you, which was also in Christ Jesus,” who “took upon him the form of a servant” and “humbled himself” (Philippians 2:5, 7-8). For how can we lose joy when we’ve already dropped our desire to have things our way? Instead, “in lowliness of mind let each esteem other better than themselves” (v. 3).

The last mindset is to “count all things but loss for the excellency of the knowledge of Christ Jesus my Lord” (Philippians 3:8). When we sever ties with the things of this world—whether bank accounts, the praises of men, or entitlement to happiness—then we clear enough clutter from our minds that simply knowing the Lord takes over. Unity in the gospel, humility in service, and detachment from worldly things bring peace that “surpasses all understanding” (Philippians 4:7). BDT