Why is it important for Christians to have increasing love for one another?

In 1 Thessalonians 3:12, Paul prays for the church to increase in love, highlighting that genuine Christian love is a fruit of the Holy Spirit. This love is not merely a sentiment but an active expression of care that strengthens the body of Christ. When believers love one another as Christ loves us, it fosters unity, encourages faith, and serves as a testimony to the world regarding the transformative power of the gospel. Paul’s emphasis here underlines that love is foundational for both individual growth in holiness and the collective witness of the church.