'Attentive' in the Bible

{Did not one God make them?} But a remnant of [the] spirit is his. And what does the one [God] desire? An offspring of God. {You must be attentive to} your spirit, and you must not be unfaithful to the wife of your youth.

"For hate divorce," says Yahweh, the God of Israel, "and he [who] covers his clothing [with] violence," says Yahweh of hosts. "{You must be attentive to} your spirit and you must not be unfaithful."