On the last Amud of Maseches Makkos, the three Rabbis in the story are inspired by the words of Rabbi Akiva and proclaim Maccoth 24b:
בלשון הזה אמרו לו: עקיבא, ניחמתנו עקיבא, ניחמתנו.
Said they to him: Akiba, you have comforted us! Akiba, you have comforted us!
Why the repetition of the statement?