So she kept fast by the maidens of Boaz to glean unto the end of barley harvest and of wheat harvest; and dwelt with her mother in law. And of wheat harvest - That is, she was to continue gleaning in the farm of Boaz to the end of the barley harvest; and then, when the wheat harvest began, to continue to its conclusion in the same way. In the interim, as well as each night, she lodged with her mother-in-law.
1. Ruth seems to have been a woman of a very amiable mind: she was modest, and she was industrious, and most probably a comely woman; and all these things served to attract the attention of Boaz, and to engage his affection. Her attachment also to her mother-in-law could not fail to secure his esteem. All these things worked together in the course of Providence, to bring about a matrimonial connection, which in its issue was intimately connected with the salvation of a lost world; for, from this very line, Jesus Christ, according to the flesh, sprang; and Ruth showed herself as worthy to be one of His progenitors as the Virgin Mary was to be His mother. See the notes on Matthew 1:1-16 (note).
2. We should carefully attend to the leadings and to the workings of God's providence; it is our duty and our interest to do both, for the path of duty is ever the way of safety. Had not Ruth acted thus, how dreary and uncomfortable must her life have been! but she followed God fully, and in a path apparently dangerous, and yet, not only sustained no injury, but succeeded well in all things: from this, as well as from innumerable other circumstances, we see the truth of that word, Acknowledge him in all thy ways, and he will direct thy steps; and with this we may ever connect, Trust in the Lord with thy whole heart, and lean not to thy own understanding. Whosoever follows God in simplicity of heart, will most assuredly be guided into all truth.
Commentary on the Bible, by Adam Clarke [1831].