A commonly accepted practice to delineate partial verses (which are, by the way, purely man-made constructions for convenience) is to use lower case "a", "b", "c", etc, depending on the complexity of the verse.
In this case the more accurate designation would be "19:26b"
"In this case the more accurate designation would be "19:26b"" Designating the quote with a more precise reference from the man-made enumeration might clarify its location, but the impression would remain the meaning is: Try something with God and you will succeed.