Matthew 21:28-29 But what think ye? A certain man had two sons; and he came to the first, and said, Son, go work to day in my vineyard. He answered and said, I will not: but afterward he repented, and went.
The devil has sought to change and confuse the meaning of the word repent in order to produce a false gospel. However, a simple study in your KJV Bible reveals repentance is not difficult to understand.