Friendships fade by distance, though the bond is never broken. You may love them dearly, but the intimacy, the bond of friendship, isn't quite the same. Only the immature insist that parting for time and by distance will not fundamentally alter a relationship. The bond of friendship transcends religious faith. Two atheists can be lifelong best friends.
Friendship is a universal notion.
The fact that two Christians are friends doesn't insulate them from breaches and breakups like everyone else. I'm going to stop here, because I've released enough negativity for one essay, but in conclusion, these lines make no sense on many levels. Let's skip it. It's goofier than the first. My theory is that Smith's plaintive vocals and the infectious chorus musical hook are what makes the song.