What does 1 Chronicles 12:17 mean?

David went out to meet them and said, 'If you've come in peace to help me, then I'm glad to have you. But if you're here to betray me to my enemies, even though I haven't done anything wrong, then may the God of our ancestors see it and judge you.' 1 Chronicles 12:17 - Modern Text Bible

(David was cautious but open. He welcomed help but made it clear he wouldn't tolerate betrayal. He trusted God to protect him from false friends.)