What the Bible says about Instruction Given as Needed
(From Forerunner Commentary)
Preaching is not bound to what time of the year it is. If somebody needs the instruction, it should be given! Normally, we would not speak about the evils of Christmas during July, but if it is necessary, we should preach it. If we need to talk about the Feast of Tabernacles during the spring holy days, we should do it! We have to be ready at all times, armed, as it were, to speak about anything that pertains to God's Word and His way of life at any time. A preacher should always give instruction when it is needed, not just when it is routinely given by others.
Richard T. Ritenbaugh
Itching Ears