Christians cannot just do anything they want to do. God has given us standards to uphold. Our thoughts and actions will determine if we have been faithful to God and this is a necessary requisite to heaven.
When I read the following short quote, "just do it" comes to mind!!!
1 Corinthians, Chapter 16 (WEB)
Today, more than ever, we need to hear words such as these because the forces of evil are rallying to destroy every single Christian in this country.