'Builds' in the Bible

"Every one who hears these my teachings and acts upon them will be found to resemble a wise man who builds his house upon rock;

And every one who hears these my teachings and does not act upon them will be found to resemble a fool who builds his house upon sand.

In discharge of the task which God graciously entrusted to me, I--like a competent master-builder--have laid a foundation, and others are building upon it. But let every one be careful how and what he builds.

Now as to things which have been sacrificed to idols. This is a subject which we already understand--because we all have knowledge of it. Knowledge, however, tends to make people conceited; it is love that builds us up.