Why do brothers and sister get upset when they are to do there job for there father and not bicker and fight?

heads up its almost time to stand up and be a team i have a team and play for my coach who is he to you and do you know your job and if you do are you doing it selfless tru and unconditionally? be wise with His words cuz life is short . . . . . . be happy He is GOOD ALL THE TIME AMEN