Ref: Galatians 6:14.
This seems over the top. Boast only in the cross! Really? Literally only in the cross? Even the Bible talks about other things to boast in. Boast in the glory of God (Romans 5:2). Boast in our tribulations (Romans 5:3). Boast in our weaknesses (2 Corinthians 12:9). Boast in the people of Christ (1 Thessalonians 2:19). What does “only” mean here?
It means that all other boasting should still be a boasting in the cross. If we boast in the hope of glory, that very boast should be a boast in the cross of Christ. If we boast in the people of Christ, that very boasting should be a boasting in the cross. Boasting only in the cross means only the cross enables every other legitimate boast, and every legitimate boast should therefore honor the cross.
Why? Because every good thing—indeed, even every bad thing that God turns for good—was obtained for us by the cross of Christ.