How to preview textso on the lock screen for the Gs6?

[AC Question]

I just upgraded from the Galaxy S4 to the Galaxy S6 and I figured out everything but one thing. I used to be able to preview my texts like who the text was from and the beginning of their message on my lock screen but now I can only see who it's from on my lock screen. Is it not possible on the S6 to preview some of the message too?