Keep the faith baby!

keep the faith

To remain optimistic about a person or situation, especially when faced with challenges. Often said imperatively as a phrase of encouragement or reassurance. She's worried that we won't get approved for the mortgage, but I just keep telling her to keep the faith. I'm sorry, but I have a hard time keeping the faith when I know how bad his temper can be.
See also: faith, keep
Farlex Dictionary of Idioms.

Keep the faith (baby)!

exclam. a statement of general encouragement or solidarity. You said it! Keep the faith, baby!
See also: faith, keep
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions
See also:
  • keep the faith
  • this too shall pass (away)
  • give it time
  • break a leg
  • Break a leg!
  • a penny for them
  • go get 'em
  • beck and call
  • keep (one's) paws off (something or someone)