Other than that, the Bible doesn't dwell too much on “handed-ness.” Most of the time I read about extending a right hand of welcome or the “right hand” side of a person being an honored place. When the Bible speaks of the “right hand of God the Father,” it's a metaphor for a place conveying authority, power, and honor. Jesus was accorded that honor upon ascending into Heaven.
I have a grandson in elementary school who is left-handed, and for whom writing (especially cursive) is a not-fun task. When I help him with his homework, I sometimes wonder why our culture is so right-hand-focused. Another question: how much genetics affects that trait. In my family we were split: “lefty” husband/dad and lefty daughter, but “righty” mother (me) and son.
My “lefty” husband had a flowing cursive writing style, but he handled his pens or pencils in an “overhand” position. My “lefty” daughter chose a different way to hold a pen, but she capitalized her left-handed dexterity to become an accomplished violinist. (Have you ever watched a very good violinist and all the acrobatics the left hand accomplishes on the violin fingerboard?)
In modern times, the name “Lefty” has popped up in old Westerns (for characters with that trait and left-handed weapon-handling prowess). Many sports figures, especially baseball players, were called “Lefty” because that was their dominant hand. (Find the list here: Lefty - Wikipedia ). Left-handedness runs in British royalty: King George VI and the Queen Mother and their famous long-reigning daughter Elizabeth II. Her son (now King Charles) and grandson (Prince William) are also known to be lefties. The trait includes famed scientists: the Curies, Einstein, Newton, and Alan Turing (founded modern computer science).
Does “handedness” affect personality? Some say “lefties” are more independent because of how they've had to adapt to “righty” skills, like using scissors or can openers, writing in spiral notebooks (with the wire on the left), driving with a stick shift, and using computer mice.
Lots more could be dug up about the differences between “right” and “left.” But I am comforted and secure in knowing that such things are not a big deal to God. He said He is the way, the truth and the life. He who created us, also has a plan for us: “Whether you turn to the right or to the left, your ears will hear a voice behind you, saying, 'This is the way; walk in it'” (Isaiah 30:21).