Thematic Bible: Who is immature

But I, Brothers, could not speak to you as men with spiritual insight, but only as worldly-minded-mere infants in the Faith of Christ. I fed you with milk, not with solid food, for you were not then able to take it. No, and even now you are not able; you are still worldly. While there exist among you jealousy and party feeling, is it not true that you are worldly, and are acting merely as other men do?

Now on this subject I have much to say, but it is difficult to explain it to you, because you have shown yourselves so slow to learn. For whereas, considering the time that has elapsed, you ought to be teaching others, you still need some one to teach you the very alphabet of the Divine Revelation, and need again to be fed with 'milk' instead of with 'solid food.' For every one who still has to take 'milk' knows nothing of the Teaching of Righteousness; he is a mere infant.