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.'

But 'solid food' is for Christians of mature faith--those whose faculties have been trained by practice to distinguish right from wrong.

Take care that no one becomes immoral, or irreligious like Esau, who sold his birthright for a single meal.