'Untimely' in the Bible

Or as a hidden untimely birth I had not been, As infants that never saw light.

Let them be as a snail which melteth and passeth away, Like the untimely birth of a woman, that hath not seen the sun.

If a man beget a hundred children, and live many years, so that the days of his years are many, but his soul be not filled with good, and moreover he have no burial; I say, that an untimely birth is better than he:

and last of all, as to the child untimely born, he appeared to me also.