But if you insert the semicolon use it properly. Some call it the supercomma. It has two uses.
1. After a colon and a list. Example: He owns stock in several places: Paris, Texas; London, Ontario; and Berlin, Wisconsin. Without semicolons readers won't know if you mean three locations or six.
2. The semicolon functions like a soft period to join two closely connected sentences. Thus both parts must have a subject and a predicate. Example: I like your floppy, silly hat; I don't like your high-heeled shoes.
I often write pithy sayings (aphorisms) and use the semicolon because the two statements are closely bound to each other: I am passionately involved in the process; I am emotionally detached from the result. A period or a comma would work and most readers aren't aware of the difference. But I am aware; therefore, I use the semicolon. (Did you notice the punctuation in the previous sentence?)
* Many times he’d imagined this day; thought about how it would go. (There is no subject in the second clause. Use a conjunction and a comma.)
* Guiding at the helm as we crossed a stretch of the Atlantic Ocean, watching flying fish buzz above the waves, snorkeling with giant sea turtles; and an endless variety of fish and coral. (Why a semicolon? The sentence contains 34 words; for modern readers, that's too many. I'd suggest making two sentences and no semicolon.)
* Give us the freedom to choose; life with God or life without God. (Again, it's incorrect. I'd use a colon after choose.)
Unless you're positive you know how to use the semicolon,
don't.