Would to God I as firmly believed it as I ardently wish it!
He firmly believed in the possibility of the brotherhood of men united in the aim of supporting one another in the path of virtue, and that is how Freemasonry presented itself to him.
That my right hand with a pen should teach me terrible things--how to fight for reform--I firmly believed.
I firmly believed that I should find it easy to effect my escape and reach home for the Thanksgiving Day celebration.
The laws of the colonies offered few obstacles to the legality of their union; and when Ludlow appeared that morning, he firmly believed that he beheld one, who, if he were not so already, was inevitably soon to become his nephew.
Remembering the artifice by which he had formerly fallen into the power of the smugglers, he had taken his precautions so well in the present visit to the villa, that he firmly believed he had the person of his lawless rival at his mercy.
It seemed right to my husband and myself to try and understand the nature of these phenomena in which our new acquaintance so firmly believed.
The above list will hopefully provide you with a few useful examples demonstrating the appropriate usage of "firmly believed" in a variety of sentences. We hope that you will now be able to make sentences using this group of words.