It is because Satan so ardently believes the truth that he can be so crafty in his schemes. We fall to temptation precisely because we fail to believe the truth.
God is good, so I don’t have to look elsewhere for comfort, peace, and fulfillment. God is sovereign, so I don’t have to be in control.
God is gracious, so I don’t have to prove myself. God is great so He doesn’t need me (to secure things for Him), therefore I can lean on Him.