"Wash, put on perfume, and get dressed in your best clothes. Then go down to the threshing floor, but don't let him know you are there until he has finished eating and drinking. When he lies down, note the place where he is lying. Then go and uncover his feet and lie down. He will tell you what to do." "I will do whatever you say," Ruth answered. So she went down to the threshing floor and did everything her mother-in-law told her to do.
Ruth 3:3-6, NIV
Much has been written about this wonderful story, and rightly so. Ruth even gets her own book of the Bible.
Boaz is a very active person in these proceedings. But I think Naomi is the one who made it all happen. You could hardly be in worse circumstances than she was--two sons died and left her destitute. But she had a plan and it worked perfectly.
Surely Ruth was a wonderful woman. Her devotion to Naomi proves that. But without intervention, this naive young woman would probably have gone on with her gleaning and passed into obscurity.
As the Russian proverb says, "Hope dies last." And in this case, hope fulfilled the plan of God. Because she did as her mother-in-law said, Ruth went from being an impoverished Moabite, to become an ancestor of Jesus Christ.