(I apologize, apparently I scheduled this for the 19th and not the 18th)
10: And he said, “May you be blessed by the Lord, my daughter. You have made this last kindness greater than the first in that you have not gone after younger men, whether poor or rich.”
We learn from this that Boaz is older than Ruth, most likely noticeably older since he mentions her being able to go after younger men, but choosing not to. Boaz’s first response also is that she be blessed by God.
11: “And now, my daughter, do not fear. I will do for you all that you ask, for all my fellow townsmen know that you are a worthy woman.”
Remember that she is a Moabite? Although she is of a different people group, she has earned recognition from the Israelites and has been seen as a worthy woman. Remember how Boaz was referred to as worthy when he was first introduced? Boaz is now telling Ruth that he accepts her request.
12: “And now it is true that I am a redeemer. Yet there is a redeemer nearer than I.”
Boaz shows again that he is a worthy man by not claiming her immediately, although he is willing, but instead stating that there is someone closer in relation to her that must be spoken with first.
13: “Remain tonight, and in the morning, if he will redeem you, good; let him do it. But if he is not willing to redeem you, then, as the Lord lives, I will redeem you. Lie down until morning.”
Boaz is following the law in that the relative closest has the first opportunity to redeem. He is willing to let the closest relative redeem her if that relative wishes, but if not he will quickly seize the opportunity. Although he tells her to lie down until morning, we can assume it is for her safety since it is dark and that nothing intimate happens. The Bible tends to bluntly mention when people are intimate with each other. Seeing as Boaz and Ruth are both mentioned as worthy is another pointer that they were respectable towards each other.
We can see how each acted in a worthy manner, although I wouldn’t recommend using this old custom in your life. We can see how Boaz is willing to redeem Ruth just as Christ is willing to redeem us. In order to do so, Christ needed to die on the cross, bearing our sins, and then rise again showing His power over death.