The heart of temptation is desire. Our desires can be triggered in many ways. Ways we must not tread on unless those desires are for God and His purposes.
Faith is the currency of Heaven. Without it all that is possible will become an impossibility. To intentionally receive from God, one must believe that He is.
We can be defined by a multitude of things. Career, possessions, family, friends, positions. All of this has the power to define and crush us. Loyalty in created things such as these over the Creator is a dangerous place to be in.