Meaning
(1) "To incline," "listen," "regard" qashabh; (Ps 17:1 etc.); then, in the King James Version, "observe," but in the Revised Version (British and American), more frequently, "give heed" prosechein noun, as in 1Ti 4:13.
(2) "To be with," "take care of," "wait upon" (Est 4:5, Heb 7:13, Rom 13:6); literally, "give unremitting care to," as in 1Co 7:35 (Luther: "serve the Lord constantly and without hindrance").