Good Monday Morning!!
If salvation is free (and it is) why work?
It expresses love to the one that died for you. It is good for you. It is never a waste. It helps snatch others from hell.
Reason number 5.
Jesus said in "John 8:32 Then you will know the truth and the truth will set you free." Studying and following God's instruction book keeps you free from the fear of the future and gives you truth to live by. It takes work to study His book (The Bible) but the truth of its pages sets you free. Have a free and peaceful week!!! 
In His Grip