Leadership competency certainly involves the words you choose as it relates to communicating with people. While action speaks louder than words, saying the wrong things can be devastating to an employee and strip them of their ability to perform well.
Using your positional authority or status to attack and dishonor another human being in a lower position contributes directly to that person's morale and state of being.
With that said, here are three phrases you most likely will never hear come out of a good leader's mouth.
1. "I don't need your advice."
Toxic bosses aren't team players because they don't trust their people enough to delegate or seek their input on things -- it's about power and control and they must exercise it to feed their ego. When facing tough challenges, on the other hand, good leaders put the team first by seeking perspective from several angles. They talk to various people to get clarity and determine a course of action. At times the decision may not be the most popular, but it's always the right one because they sought many voices from sound minds.
2. "I'm not responsible."
Toxic bosses deflect responsibility and cast blame elsewhere to protect themselves at all costs. On the other hand, good leaders put their ego aside, because admitting to being human and making mistakes actually increases trust. When leaders model this type of authenticity, employees feel safe enough to take risks, make their own mistakes, and be open enough to say, "Hey, boss, I messed up."
3. "Nothing is wrong."
Employees aren't stupid. They can feel the pulse of the organization during challenging times and will see right through a boss who isn't telling the whole story or pretending everything is fine' when the building is on fire. On the flip side, while some things are on a need-to-know basis, good leaders will keep employees abreast of what's going on, especially when it impacts their work, their livelihoods, and their customers.