Ecclesiastes 12:3-4

Remember him before your legs—the guards of your house—start to tremble; and before your shoulders—the strong men—stoop. Remember him before your teeth—your few remaining servants—stop grinding; and before your eyes—the women looking through the windows—see dimly. Remember him before the door to life’s opportunities is closed and the sound of work fades. Now you rise at the first chirping of the birds, but then all their sounds will grow faint.