The Jehovah's Witnesses are not superstitious and they do not believe in good luck OR bad luck! Saying 'Good luck to you' is simply not done within the organization. If you say something like that they'll know right away you're not a Jehovah's Witness. You are an imposter, because they know a real Jehovah's Witness would never say such a thing. The same thing would apply to black cats, walking under a ladder, breaking a mirror, Friday the 13th, etc.
The Jehovah's Witnesses point to these scriptures and say that believing in good luck, superstition, or good fortune, is not approved by their God. Who Is Jehovah?
"But as for you who forsake the LORD and forget my holy mountain, who spread a table for Fortune and fill bowls of mixed wine for Destiny, I will destine you for the sword, and you will all bend down for the slaughter; for I called but you did not answer, I spoke but you did not listen. You did evil in my sight and chose what displeases me." Isaiah 65:11,12 NIV Isaiah 47: 13.
Jehovah's Witnesses believe that superstitions keep people in bondage. Bible truths set them free. John 8:32. Watchtower Dec 1, 2009. 'Lunar New Year - Is It For Christians?' See Religious Salvation
WT Aug 1, 2002. 'Do Superstitions Control Your Life?'
WT Sept 1, 1993. 'Can Good-Luck Charms Protect You?'
WT Oct 1, 1964. 'Believers in Good Luck.'