A phrase used when someone wants to share the love of Jesus Christ, it is important to use this phrase in the correct context as some may become offended.
I've seen a lot of sorry and disrespectful definitions so I thought I would do the phrase justice, I might get downvoted for this but as the scriptures say "If the world hate you, ye know that it hated me before it hated you." (John 15:18-19).
-Hi, how has your day been
-Not very good
-Oh, I hope it gets better, Jesus loves you.
-Thank you