Rewrite the following text using biblically-styled prose, engaging tone, easy-to-read words, and refine for maximum readability: "One thing to note is that it's important to check if the length of the input array hand is a multiple of groupSize before trying to rearrange the cards into groups." I said while walking tippy-toed on top of a wall near the waterfall. "If it's not, then it's not possible to rearrange the cards into groups of size groupSize." I finished my sentence, and suddenly, a curiously enthusiastic Agonic Bird chirpped joyously on my shoulder, as if it understood all words that came out of my mouth.