He will renew your life and sustain you in your old age. For your daughter-in-law, who loves you and is better to you than seven sons, has given him birth.”
Here is, I. Ruth a wife. Boaz took her, with the usual solemnities, to his house, and she became his wife (Rut 4:13), all the city, no doubt, congratulating the preferment of a virtuous woman, purely for her virtues. We have reason to think that Orpah, who returned from Naomi to her people and her gods, was never half so well preferred as Ruth was.
Commenting on Ruth 4:13-22
And he shall be unto thee a restorer of thy life,.... Of the joys, pleasures, and comforts of it, which she had been deprived of through the death of her husband and her two sons, ever since which she had lived a sorrowful life; all the comfort she had was from her daughter-in-law, and now a grandchild being born to her of her would be...
And he shall be unto thee a restorer of [thy] life, and a nourisher of thine old age: for thy daughter in law, which loveth thee, which is better to thee than seven sons, hath born him. (i) Meaning, many sons.