To Debate or Not To Debate?

Proverbs 25:9 Debate thy cause with thy neighbour himself; and discover not a secret to another:
2 Corinthians 12:20 For I fear, lest, when I come, I shall not find you such as I would, and that I shall be found unto you such as ye would not: lest there be debates, envyings, wraths, strifes, backbitings, whisperings, swellings, tumults: