Using 'break faith' implies a strong negative impact on trust in relationships. After sharing secrets, if you gossip, you break faith with your confidant.
Pro Tip 2/3
Emotional Weight
'Break faith' carries an emotional weight, signaling disappointment and hurt. He broke faith with his team, leaving everyone feeling betrayed.
Pro Tip 3/3
Serious Accusation
Accusing someone of breaking faith is serious and might damage relationships. When he didn't support her idea, she accused him of breaking faith.