Expositor's Bible Commentary Commentary 1 Corinthians 1:9

"God is faithful, through whom ye were called into the fellowship of his Son Jesus Christ our Lord." — 1 Corinthians 1:9 (ASV)

Before concluding this section of thanksgiving, Paul assures the Corinthians of God’s faithfulness. As God called them initially into fellowship with Christ, so he is “faithful” (GK 4412) in completing the work, granting them every grace and gift for daily life (cf. Php 1:6). Observe the apostle’s fivefold repetition of the name of Jesus Christ in this brief section. All of salvation—past, present, and future—is based on Christ’s redemptive work. And he is coming again!