Here is the setup of the scene:
The Don (head of the mafia family Corleone’s) is retiring and passing wisdom on to his son, who is taking over.
“Keep your friends close, keep your enemies closer.”
In life, never lose sight of the fact that there are always going to be people out there that want to take advantage of you. That is how the world works.
Surround yourself with good Christian people – make it a priority. Those are the people you work with and commit to.
Keep your enemies closer? Translation: Keep a close eye out, and your spidey senses (Holy Spirit) sharpened for people, even those purporting to be Christian, who are not honest and are “wolves” looking to take advantage of sheep.
Acts 1:8
But you will receive power when the Holy Spirit comes on you.