Use "assuredness" in a sentence

1. He continually wore a disarming grin and his carriage bespoke assuredness of purpose

2. The Magician was imposing; his words denoted authority and his manners reflected the assuredness granted by the knowledge that his will were always obeyed

3. He was older than the others, and had an air of calm self assuredness that they lacked

4. assuredness is the basis of true, healthy self-confidence

5. assuredness that the moon is also falling