The highest expression of love is not unconditional acceptance; it is inviting others to hold to the Word of God. Paul did just that when he wrote a "severe" letter that had the potential to offend and end relationships, as he called the Corinthians out of their sin. In 2 Corinthians 7, Paul is pleased to know that they have responded to his letter with sorrow by the Spirit rather than sorrow by the flesh. Sorrow in the flesh brings guilt and shame, whereas sorrow in the Spirit convicts and causes repentance.