# dug down deep in the ground and built the house's foundation on solid rock

"dug down deep into the ground until he found a large, solid rock. Then he built his house on that rock so that it would be strong and stable." Some cultures may not be familiar with this process of building a house and may need to use another image for a stable foundation.

# torrent of water

"fast-moving water" or "river"

# flowed against

"crashed against"

# shake it

Possible meanings are 1) "cause it to shake" or 2) "destroy it."

# because it had been well built

This can be stated in active form. Alternate translation: "because the man had built it well" (See: [[rc://en/ta/man/jit/figs-activepassive]])