Yes, it is also a gospel of obedience. This passage does not say that only some are new creatures, or that it would be nice if they were new creatures. Neither does it say that this new creation is optional or reserved only for those who make Christ Lord of their lives. To be in Christ is to be a new creature. It is to have Christ as Saviour and Lord.
Some temptations come to the industrious, but all temptations attack the idle.
Idle Christians are not tempted of the devil so much as they do tempt the devil to tempt them.