In the latter end than at the beginning - It is not easy to find out what Boaz means. Perhaps חסד chesed, which we translate kindness, means piety; as if he had said: Thou hast given great proof of thy piety in this latter instance, when thou hast avoided the young, and those of thy own age, to associate thyself with an elderly man, merely for the purpose of having the Divine injunction fulfilled, viz., that the brother, or next akin, might take the wife of the deceased, and raise a family to him who had died childless, that his name might not become extinct in Israel: this latter act is a greater proof of thy piety and sincerity than any thing that could be inferred from thy becoming a proselyte.
Whether poor or rich - So it appears from this that it was not to mend her condition in life that Ruth endeavored to get Boaz for her husband, for she might have had a rich young man, but she preferred the building up the house of her deceased husband. See above.
Thou hast shewed more kindness - Literally, “Thou hast made thy last kindness better than the first.” Her last kindness was her willingness to accept Boaz for her husband, advanced in years as he was.