Our salvation is by grace through faith, but we nonetheless should live worthily of our calling. When people annoy me, I need to bear with it in love and unity.
God gave different roles and gifts to different people. This is for mutual benefit. Let's not be jealous of each other.
Telling of the truth must be done in love, or it can be hurtful.
Human anger, unlike God's, is destructive. We mustn't harbour it. We must get rid of it ASAP, or else we'll give Satan a foothold. Forgive!