# behold

"listen" or "pay attention to what I am about to tell you"

# I blew it away

"I made sure there was nothing there for you to find"

# declares Yahweh of hosts

"this is what I, Yahweh, have declared". Yahweh speaks of himself to express the certainty of what he is declaring.

# runs to his own house

"is always working to build his own house." This emphasizes that the people consider building their own houses the most important thing they can do.