Unity is a very important fraction of a well-functioning and coherent community within a country.
Unity is being joined as a whole and being able to cooperate with your surrounding community of people and respect them whether you have the same ideologies or not.
America was once a country defined by their confident self-perception, and with their “can-do” spirit they were able to win two wars
make a moon landing and invent a lot of the world’s economy. This “can-do” spirit has decreased, and they now seem to be a nation falling apart.
In Joe Biden’s speech he tactically chooses to mainly use pathos when talking, by appealing to the audience’s feelings.
He, among others, said “And, in my first act as President, I would like to ask you to join me in a moment of silent prayer to remember all those we lost this past year to the pandemic.”
When mentioning the pandemic, he touches a vulnerable topic for many people. By doing so he can make the audience feel a certain way and/or understand the situation they are all in.
E.g., the emotions they feel will make them understand that this pandemic is a terrible and real situation, but it is something that they are all in together and that they are not the only ones experiencing loneliness or grief.
When speaking he also includes ethos by appealing to trust. He mentions “I promise you this: as the Bible says weeping may endure for a night but joy cometh in the morning.”
The United States have the largest Christian population in the world and by appealing to them through the bible creates a bond and trust in his words.
It is telling them that he is promising what he claims with a reinsuring that even the bible agrees in. Joe Biden actually represents trustworthiness just by being himself
that is because he is a well-educated and important man who has been in the game, for a long time.
Joe Biden uses very little of logos by appealing to logic, this might be for tactical reasons. By not using a lot of statistics or research he can reassure that he wont loose any, possibly undereducated, during his speech.