First, Christ should be preached in a gospel message. Second, it is impossible to say everything about Christ--even in a lifetime. Some texts more than others relate more to Christ and his Kingdom, or character, attributes, et. al. and thus in those you would definitely preach more about Christ. In others though you will reveal how they relate to Christ, but expound upon what the text states .....

Third, we must be careful and not overlook the simplicity of such a message as is given in Acts 2. Maybe there ought to more messages like this. grin

Lastly, we have some excellent articles on-line concerning this. Enjoy

Reformed and Always Reforming,