When I attended school, many classmates waited until the last possible minute to work on homework assignments. They were running a marathon as if it were a sprint. They begged faculty members for extensions and mercy.
My own habit of using the cramming study method resulted in end-of-semester panic. It finally dawned on me that starting the study process sooner might be good for my mental health. Staying on top of homework, assigned papers, and reading left me free to enjoy leisure activities. Higher grades were an added bonus. With more time and less last-minute rushing, I could formulate my thoughts and do a better job.
As writers, we're given deadlines. Missed deadlines means inconveniencing an editor and possibly an entire company. It could mean that story or book will never get published and reach someone going through a difficult time.
I don't think there's a person who hasn't put off a chore only to find themselves in a tight spot. Someone I know put off tasks on a regular basis, thinking they had plenty of time. The diagnosis of an illness left the person unable to get some critical things finished.
Not all procrastination has such dire consequences. Yet, it exposes an attitude of counting on tomorrow. We have today. There are no guarantees for the future. Being faithful, diligent, and trustworthy today honors God, honors our fellow man, and gives us peace in our daily lives.