Ruth lived during the time when Israel was ruled by Judges. She was not an Israelite. She was widowed at a young age. She followed her mother-in-law back to Naomi's home land out of love for her. There she met Boaz. He would be so much more than a husband!
In Ruth we learn about loyal love, which is commitment to a promise and unwavering love for another. We also learn about a kinsman redeemer, which is a distant family member who comes to save another from disaster. Loyal love and kinsman redeemer are attributes of God.