en_tn_condensed/luk/06/48.md

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

Some cultures may not be familiar with this process of building a stable house. Alternate translation: "who worked hard and built a stable house"

the torrent of water flowed against that house

"the fast-moving water crashed against house" or "the river beat on the house"

could not shake it

Possible meanings are 1) "could not cause the house to shake" or 2) "could not destroy the house."

because it had been well built

"because the man had built it well"