'Old' in the Bible

Go back, my daughters, go your way; for I am too old to have a husband. If I should say, 'I have hope,' if I should even have a husband tonight, and should also bear sons;

He shall be to you a restorer of life, and sustain you in your old age, for your daughter-in-law, who loves you, who is better to you than seven sons, has borne him."