“Luck” in Judaism

You once wrote at the end of a column, “best of luck.” As far as I know (from my own understanding and from hearing the teachings of a Rabbi on the subject), Jews do not believe in “luck.” The rabbi’s reasoning is that “luck” actually requires randomness, fortuitous “chance” and an assumption that nobody and nothing is in charge. Judaism’s core is “Ad-noy Ehad,” “ein od mi lavado,” there’s no power but G-d. G-d is the very fabric of all there is, and is continuously re-creating all. Luck is a contrary belief to His omniscience. I’m sure you know all that, but I write just because I always find it interesting when our language, even of trivial phrases, runs against our actual understanding.