The loss of the Ark from Israel anticipated the way of approaching God through Christ and also warns against faith that is merely outward conformity.
The garments and the consecration ceremony for the Aaron and his sons emphasize that the way to approach God is through a perfect priest...
With parables and warnings, Jesus told everyone in his day and ours to be ready for the coming of the Son of Man.
The church in Thessalonica not only followed worthy examples but also became one itself.