God gave me an extra day of rest

My plan for today was to swim. No weights. Wanted to see if it was the swimming or the weights or the combo of the two that made my back so sore a couple of weeks ago. I decided not to set the alarm clock as I worked til 930 last night. I woke up to the sound of thunder. Dozed off again and thought I might bike instead but still was hearing thunder. Then looked outside and saw the ominous clouds so I decided that I should snooze a little longer, take it easy, and MAYBE swim tonight? I am tired so maybe this is a good thing--a little more rest never hurt anybody, right?