New Defender's Study Bible Notes
5:1 the times and the seasons. The phrase “times and seasons” occurs elsewhere only in Acts 1:7. The “times” have to do with the chronology of future periods, the “seasons” with the characteristics of those periods.
5:1 no need. There was no need for Paul to write of these matters, for he had already conveyed all this information concerning the future to them, both the teachings of Christ, those of the apostles, and also what he himself had received by revelation.