The devil may be fawning and wily to break one's commitment to God, or he may be hostile and deadly. He appeals to the innate selfishness of humans to get us to disobey God: “You desire things, you deserve them, and you will get them.” The word that we can gain anything we want in life – wealth, health, the perfect mate, business success, respect from others – is irresistible to those who are obsessed with themselves. The devil can quote Scripture and tell lies about God so that evil masquerades as something good. He can get persons to believe that their personal interests are indistinguishable from God's interests. When we do not get what we want, the devil uses a snake-headed bitterness that rears up from the caverns of the heart to destroy others and ourselves. Satan also tries to lead us to mistrust God and so to put God to the test.
David Garland