There has been a marked tendency in the last years or so to divide up Christian work according to age groups. I have never been very enthusiastic about these divisions into age groups – old age, middle age, youth, children, and so on. By that I mean that we must be careful that we do not modify the gospel to suit various age groups. There is no such thing as a special gospel for the middle-aged, and a special gospel for the aged. There is only one gospel, and we must always be careful not to tamper and tinker with the gospel as a result of recognizing these age distinctions. At the same time, there is a difference in applying this one and only gospel to different age groups; but it is a difference which has reference only to method and procedure.
– The Presentation of the Gospel, pg 2, from Knowing the Times