While I do not agree with several of Down’s assumptions and conclusions, this study of one of Paul’s greatest ministry achievements (the Gentile offering for the saints in Jerusalem) is very helpful. Downs often seems to speculate and stretch to prove his thesis, but he provides many insights for approaching the passages in 1Corinthians 16, 2Corinthians 8-9, and Romans 15 regarding “the offering of the Gentiles.”
Pastor-teachers who preach on giving from Corinthians would do well to work there way through this book (Collection is worship). And students of missions would be wise to read it as well and learn more about the Gentile offering as it relates to partnering and giving to global outreach (Collection is harvest), though Downs does not develop this aspect in relation to Romans 15 as much as he could.