Keep the right motivation to serve the Lord

Acts 5:1-11
a man named Ananias, together with his wife Sapphira, also sold a piece of property. With his wife’s full knowledge he kept back part of the money for himself, but brought the rest and put it at the apostles’ feet.
Peter said to him, What made you think of doing such a thing? You have not lied just to human beings but to God. 
Their sin is conspire to test the Spirit of the Lord?
Great fear seized the whole church and all who heard about these events.
Why?
Holy Spirit know the heart and mind of everyone.
Lie to the human but lie to the Holy Spirit, the God is severe sin, will be dead.
Ananias wanted to get the good honor before apostles, but selfish made him blind.
The work of Holy Spirit seized the whole church, for there was justice in the church.
Holy Spirit is with Peter so Peter knew that Ananias lied to God.
When church is growing up but there are some people are selfish and intent to made false witness, it is the work of Satan. It have to prevent and alert about it.
How?
Keep the right motivation to serve the Lord in church and my life.