How to Use "deceitful" with Example Sentences

1. What if all wartime spending is paid for through the deceitful and evil process of inflating and borrowing ?
2. I never saw sam huntington do anything deceitful or malicious , never saw him sacrifice his principles for power or access or expedience .
3. As jeremiah writes , " the heart is deceitful above all things , and desperately wicked : who can know it ? "