The phrase "a depth of passion" is correct and usable in written English.
It can be used to describe a strong and profound feeling or enthusiasm for something, often in artistic or emotional contexts.
Example: "Her performance was filled with a depth of passion that captivated the entire audience."
Alternatives: "a profound intensity" or "a strong fervor."
Instead, he spoke from the heart, revealing a depth of passion for Ford that turned the room dead silent.
But, for me, the standout, whose spirit gave the musical a new dimension of tragedy, was the charismatic Josefina Scaglione, a sweet-faced, twenty-one-year-old Argentinean who brought a depth of passion, playfulness, and womanliness to Maria.
Our sports fans love their teams with a greater depth of passion and devotion than any other sports fans on this strange planet we call Earth.
She was the Founder of the Social Enterprise Group SEGG) and Sustayne, and has a depth of experience and passion for addressing social and environmental issues through profitable business ventures.
Dance pop's willingness to pick up whatever is lying around, on the other hand, tends to be dismissed as gimmicky looseness – a sign not of depth of passion, but of flirtatious fecklessness.
This is ignorant but hopeful young Rita, who has just been jilted by "her Yank" and who, at the same time as suffering, inarticulately, a Bovary or Karenina depth of passion, stands obediently at the scullery sink washing herself ready for bed as she has been told to do - after the something very nasty has happened that we can only guess at and of which she has no idea.
"I go down in the morning and there's people sleeping on sofas". Mrs. Mahon-Theobald said the association recognized that the Jacobses paid $5.5 million for their lot and it was "not in the business of trying to turn people down". But she did not recall a project in Conyers Farm "that aroused anywhere near the depth of passion really that this one has.
Manifesting the depth of passion that the incident still incites, he declares simply that Popper lied.
The Stanford faculty and residents astounded me in their diversity of interest and depth of passion for their work.
"People look at his work as if it were childlike, or childish, and they tend not to see the depth of passion that goes into it".
"It does show the depth of passion our fans have for our game," said Bob McNair, who owns the Houston Texans and also breeds and races thoroughbred horses.
