Bring your own phone straight talk, iPhone 5s previously on Verizon contract?

I have an iPhone 5s with no sim card that was previously on a verizon contract. How do I make this activated with straight talk?

Make sure that the phone is unlocked through Verizon. Then go to the Straight Talk website and enter your phones ESN or other serial number into the website to make sure that it is compatible with the bring your own phone program. The website will tell you what you need to purchase to activate your phone with Straight Talk. You will need a $45 airtime card or greater. You will also need a code, to allow your phone to work with Straight Talk, which may be sold with the Straight Talk sim card.