Worship and serve God alone.
Jesus said to him in reply, “It is written: ‘You shall worship the Lord, your God, and him alone shall you serve.’” Luke 4:8
At this, Jesus said to him, “Get away, Satan! It is written: ‘The Lord, your God, shall you worship and him alone shall you serve.’” Matthew 4:10
Whom or what are you living for? How do you decide how to spend your life, time, energy, money, and other resources? What is your motive for life? Your purpose? If the answer is anything except God, then that is the wrong answer.