Why did god gave us 2 ears and 1 mouth?

Here is what The Bible has to say in James 1: 19." Know this my beloved brothers: Everyone must be quick to listen,slow to speak, slow to anger.

One of the best ways to help a friend is to listen when he/she wants to talk.

So to answer your question: having two ears means that we must listen twice more than talking. We can also slow down our anger by being a good listener.