Logo for new mortgage broking business

This is what Petra Mortgage Broking was looking for in their logo design

We are in need of a logo design for a new mortgage broking business based in Melbourne Australia.
We have named our business Petra based off biblical origins. Petra or rock is a representation of god at our foundation and motive behind a relations based business. We are motivated to help those obtain finance and assist them to build their own foundations.
We want a design that is very professional (thinking black and silver) and simplistic, with a logo behind/above our name that presents a rock or mountain or something similar. We are looking for clean, minimalist, professional.
In saying that, we are also very open to alternatives that may best capture the above. Read more