"May God bless you."
However, depending on the context, other options might be more appropriate, like:
* "God bless you." (This is a more common, everyday phrase in English)
* "May God's blessings be upon you." (This is a more formal and poetic translation)
* "God be with you." (This is another common expression of blessing)
Ultimately, the best translation will depend on the specific situation and the tone you want to convey.