Robert Christy, comp. Proverbs, Maxims and Phrases of All Ages. 1887.
Betray
He alone won’t betray in whom none will confide.Congreve.
Who betrays me once wrongs me, who betrays me twice serves me just right.German.
Who last betrays is master.German.
Who will betray must spin fine threads.German.
Who will betray pipes sweet.German.