The ministering] St. Paul had already written on the collection in general (1 Corinthians 16:1-4), and had sent instructions by Titus on his first visit (2 Corinthians 12:18). The saints] the Christians in Jerusalem.
Related Commentaries of 2 Corinthians 9:1
2 Corinthians 9:1
1 For as touching the ministering to the saints, it is superfluous for me to write to you: