By laziness the rafters sag,
and through idleness of the hands the house leaks. Bible see other translations

“laziness.” The Hebrew text has the dual ending on lazy, as if it is saying, by “double laziness” (or perhaps implying the laziness of both hands), the roof sinks in.

“rafters sag.” The rafters support the roof, which is usually packed dirt on top of the rafters then roof material. If the rafters sag, then the roof has a dip in it that collects water and the roof will leak, guaranteed.

Commentary for: Ecclesiastes 10:18