1 Corinthians 15:58

1 Corinthians 15:58 from the New King James Version (NKJV). 58 Therefore, my beloved brethren, be steadfast, immovable, always abounding in the work of the Lord, knowing that your labour is not in vain in the Lord. 

This verse is the conclusion of Paul’s extensive discourse on the resurrection in 1 Corinthians 15. Here are some insights and theological teachings from this verse: 

1. “Therefore, my beloved brethren”: This is a term of endearment from Paul, showing his deep love and concern for the believers in Corinth. It reminds us that Christian teaching is not just about imparting knowledge but is grounded in relationships of love within the body of Christ. 

2. “be steadfast, immovable”: In the context of Reformed Evangelical Christianity, these words echo the doctrines of God’s sovereignty and the perseverance of the saints. Believers are called to be steadfast and immovable, standing firm in their faith despite trials and tribulations. This is possible because of God’s grace and the work of the Holy Spirit in their lives. 

3. “always abounding in the work of the Lord”: This is a call to diligent service in the Lord’s work. It’s not just about doing good deeds but about serving God with our whole hearts in all areas of life. This aligns with the Reformed emphasis on vocation – that all of life is service to God. 

4. “knowing that your labour is not in vain in the Lord”: This provides the motivation for the believer’s service. In the light of the resurrection, we know that our work for the Lord is not pointless or futile. Even if we don’t see the results in this life, we have the assurance that our labour in the Lord will bear fruit in eternity. 

In terms of application to modern Christian living, this verse encourages believers to persevere in their faith and service to God, even when facing difficulties or opposition. It reminds us that our work for the Lord has eternal significance because of the resurrection of Christ. 

As for biblical and Reformed Christian sources, the teachings in this verse align with various passages in the Bible that speak of God’s sovereignty (e.g., Ephesians 1:11), the perseverance of the saints (e.g., Philippians 1:6), and the importance of diligent service (e.g., Colossians 3:23-24). Reformed theologians such as John Calvin and Charles Spurgeon have also written extensively on these themes.