While the Old Testament doesn't have passages explicitly wishing someone "good luck" in the way we use the phrase today, it's full of blessings and expressions of hope for success and prosperity granted by God. Here are some good options, depending on the context and nuance you want to convey:
Emphasizing God's Guidance and Blessing:
* Numbers 6:24-26 (The Aaronic Blessing): "The Lord bless you and keep you; the Lord make his face shine on you and be gracious to you; the Lord turn his face toward you and give you peace." This is a classic blessing, invoking God's protection, favor, and peace. It's appropriate for almost any situation where you want to wish someone well with a spiritual emphasis.
* Deuteronomy 28:6: "You will be blessed when you come in and blessed when you go out." This is a short verse taken from a longer passage where Moses is describing the rewards for those who obey God. It can be used to show that you are wishing someone well in all their endeavors.
Emphasizing Strength and Courage:
* Deuteronomy 31:6: "Be strong and courageous. Do not be afraid or terrified because of them, for the Lord your God goes with you; he will never leave you nor forsake you.” This passage encourages confidence and faith in God's presence, particularly when facing challenges. It would be suitable for someone starting a new job, facing a difficult task, or going through a challenging time.
* Joshua 1:9: "Have I not commanded you? Be strong and courageous. Do not be frightened, and do not be dismayed, for the Lord your God is with you wherever you go.” Similar to Deuteronomy 31:6, this emphasizes courage and God's unwavering support. It's perfect for someone embarking on a new journey or facing uncertainty.
Emphasizing Prosperity and Success (with a caveat):
* Psalm 1:3: "That person is like a tree planted by streams of water, which yields its fruit in season and whose leaf does not wither—whatever they do prospers." This psalm describes the blessings that come to those who delight in God's law. While wishing someone "prosperity," remember the underlying message of seeking God's guidance.
Things to Consider When Choosing:
* Context: Think about the specific situation the person is facing. Is it a challenge, a new opportunity, a time of uncertainty, or a celebration?
* Your Relationship: How close are you to the person? A more formal blessing like Numbers 6:24-26 might be suitable for someone you don't know well, while a more personal message based on Deuteronomy 31:6 or Joshua 1:9 could be better for a close friend or family member.
* Their Beliefs: Are they religious? While these passages can be appreciated by anyone, they will resonate more deeply with someone who shares your faith.
Important Note: While these passages can be used to express good wishes, remember that the Old Testament emphasizes God's sovereignty and the importance of obedience and faith. True "luck," in the biblical sense, is often seen as a result of God's favor and blessing upon those who follow His ways. Avoid using these passages in a way that implies a belief in chance or fortune divorced from God's will.