"And Ruth said, Intreat me not to leave thee, or to return from following after thee: for whether thou goest, I will go; and where thou lodgest, I will lodge: thy people shall be my people and thy God shall be my God." - Ruth 2-4 (Audio)
The following sermons are on Ruth 1:16:
Ruth, by Pastor Charles Haddon Spurgeon (1834-1892)
Ruth's Resolutions: Five Discourses on the Soul's Eternal Salvation, by Jonathan Edwards (1703-1758)
Ruth's Remarkable Resolution, by Rev. Gordon Dane