OT.filter - mkjv profitable:

mkjv@Ecclesiastes:10:10 @ If the iron is blunt, and he does not whet the edge, then he must put more strength to [it]. But wisdom [is] profitable to direct.

mkjv@Jeremiah:2:8 @ The priests did not say, Where [is] the LORD? And they who handle the law did not know Me; the shepherds also rebelled against Me, and the prophets prophesied by Baal, and walked after things not profitable.