Romans 5:3-5, 11

And not only this, but [with joy] let us exult in our sufferings and rejoice in our hardships, knowing that hardship (distress, pressure, trouble) produces patient endurance; and endurance, proven character (spiritual maturity); and proven character, hope and confident assurance [of eternal salvation]. Such hope [in God’s promises] never disappoints us, because God’s love has been abundantly poured out within our hearts through the Holy Spirit who was given to us.

Not only that, but we also rejoice in God [rejoicing in His love and perfection] through our Lord Jesus Christ, through whom we have now received and enjoy our reconciliation [with God]. [Jer 9:24]