MANY newer versions omit words, rearrange words that completely change what the scripture is. KJV was the Bible extant for centuries prior to new versions cropping up this century.
Look in newer versions for Acts 8:37 and ponder the differences/omissions.
I’ve recently learned that the KJV was written in response to the publication of the Geneva Bible. It’s really got a fascinating history. Click to http://genevabible.com/ and scroll to the bottom for background on the Bible that the Pilgrims/Puritans read, that was brought over on the Mayflower.