Now that we have God's approval by faith, we have peace with God because of what our Lord Jesus Christ has done.
Through Christ we can approach God and stand in his favor. So we brag because of our confidence that we will receive glory from God.
But that's not all. We also brag when we are suffering. We know that suffering creates endurance,
endurance creates character, and character creates confidence.
We're not ashamed to have this confidence, because God's love has been poured into our hearts by the Holy Spirit, who has been given to us.
Look at it this way: At the right time, while we were still helpless, Christ died for ungodly people.
Finding someone who would die for a godly person is rare. Maybe someone would have the courage to die for a good person.
Christ died for us while we were still sinners. This demonstrates God's love for us.