Many times, most Christians are comfortable with doing what they want to do rather than doing what God has asked to them to do.
Love those we want to love.
Forgive those we want to forgive.
Live our lives the way we want to.
When Samuel made this statement to Saul, it was to address his partial obedience. Partial obedience is still disobedience.
1 Samuel 15:22
22 But Samuel replied: “Does the Lord delight in burnt offerings and sacrifices as much as in obeying the Lord? To obey is better than sacrifice, and to heed is better than the fat of rams.
Saul had been asked by God to go to the Amalekites and destroy them, destroy the whole city, animals, kings, everyone no one was to be spared.