An expression of good will when addressing someone, typically someone about to go on a journey or a daring endeavor
Godspeed, John Glenn. (Scott Carpenter).
The term Godspeed is sometimes used in order to wish someone success and safety, especially if they are about to go on a long and dangerous journey. I know you will join me in wishing them Godspeed. used to wish someone good luck, especially before a journey (God speed you )
A Christian substitute to the otherwise sacrilegious "good luck", which implies that anything can be random and out of the hands of God. Used to express concern and prayer for someone
An expression of respect and good will when addressing someone, typically someone about to go on a journey or a daring endeavor