This song is about knowing that things are about to get rough. You could interpret it to mean a big argument is coming in a relationship, or considering Dustin's use of Christian themes, it could mean how things are only gonna get worse for Christians as time passes. The song doesn't really indicate what kind of a storm it is. In whatever case, the final chorus shows that the storm won't kill us, and something much better will come out of it.
This song is about knowing that things are about to get rough. You could interpret it to mean a big argument is coming in a relationship, or considering Dustin's use of Christian themes, it could mean how things are only gonna get worse for Christians as time passes. The song doesn't really indicate what kind of a storm it is. In whatever case, the final chorus shows that the storm won't kill us, and something much better will come out of it.