“Wait, my daughter,” said Naomi, “until you find out how things go, for he will not rest unless he has resolved the matter today.”
We are here told, I. How Ruth was dismissed by Boaz. It would not have been safe for her to go home in the dead of the night; therefore she lay at his feet (not by his side) until morning.
Commenting on Ruth 3:14-18
Then, said she, sit still, my daughter,.... Keep at home, say nothing of this affair to any person, be easy about it, take no other steps in it, wait the issue of it: until thou know how the matter will fall; not that she thought it was a chance matter, a fortuitous and contingent event with respect to God; for all decrees come from heaven...
Until thou know how the matter will fall - That is, whether he who is nearer of kin than Boaz will take thee to wife; do not return again till this thing is determined. Boaz lost no time to bring this to an issue, as we shall see in the following chapter, Ruth 4 (note).