God's Word has much to say about the tongue.
Some folks are too quick to speak. Proverbs 18:13 says "He that answereth a matter before he heareth it, it is folly and shame unto him." Christians should be careful in giving advice. I have seen people swell with importance when asked to lend an opinion about something. I have also seen people try to live out the lives of others by desperately attempting to influence important decisions that should only be made by the person directly affected.
Of course we need each other. We need exhortation. We need encouragement. We need to be able to pray together. We also need to make sure we are not leading or encouraging horizontal lives, but that we are in mutual support of a living relationship with the One who designed it all.
We certainly need each other, but we look to Him for guidance. The balance is in the relationship with Him. It is far too easy for some to want someone else to call the shots. He said He would lead us with His eyes, and , so He will.