But brother goeth to law with brother. — “It would almost seem as if it were not so. Your dragging these disputes before tribunals of the heathen would imply that it is not possible to find a Christian friend whom you can trust to settle these trivial disputes.” Thus the Apostle answers his question of the previous verse.
Related Commentaries of 1 Corinthians 6:6
1 Corinthians 6:6
6 But brother goeth to law with brother, and that before the unbelievers.