Bad punctuation. Jesus said, “I tell you today (right now), you will be with me in paradise.”
Tell us, without telling us, that you are a Jehovah's Witness. That is their standard interpretation, if I'm not mistaken.
And, yes: Ancient Hebrew (as well as all other languages at that time) did suffer sorely from a lack of proper punctuation.
No telling how different the Bible would read if the ancients had had semicolons, commas, parentheses, brackets, etc.
Footnotes, endnotes, a glossary, an index, and a section titled "FAQs" would have been likewise appreciated!
Regards,