And this they did, not as we expected, but first gave their own selves to the Lord, and unto us by the will of God.
All Commentaries on 2 Corinthians 8:5 Go To 2 Corinthians 8
The secret of the Macedonians’ zeal was that first, they gave themselves to the Lord. Everything else flowed from that. As a result, when they showed mercy they were not filled with pride but rather displayed great humility and heavenly wisdom.