1 Corinthians 16:1

Now concerning the collection for the saints, as I have given order to the churches of Galatia, even so do ye (KJV)

Then: Clear statement, new topic. Corinthians hearing it knew that instructions were coming to clear up an old problem about sending money to the Jerusalem churches. Baker (p. 239) speculates that the money would be used for the poor there and to defray costs of the annual pilgrims staying with Christian hosts (in the past might have used Jewish homes, but those no longer available).

Now: A part of the process of "Love one another" involves paying attention to the needs of others and helping, as possible. Although impulsive responses to sudden needs happen, planning for regular giving and participation in serving God with worldly goods makes better sense. It ensures the wise use of funds and relieves some of the anxiety of those in need.

Extra Source: Cornerstone Biblical Commentary 1 Corinthians (William Baker), 2 Corinthians (Ralph Martin & Carl Toney), ed. by Philip Comfort. Carol Stream: Tyndale House Publishers, c2006.