Because people were just bringing meaningless sacrifices to God without living out their lives in dedication to Him, He said this,
“I hate all your show and pretense— the hypocrisy of your religious festivals and solemn assemblies. I will not accept your burnt offerings and grain offerings. I won’t even notice all your choice peace offerings. Away with your noisy hymns of praise! I will not listen to the music of your harps. Instead, I want to see a mighty flood of justice, an endless river of righteous living.
Amos 5:21-24 NLT
Music by Keith Green, “To Obey Is Better Than Sacrifice”: