'Attentive' in the Bible

No one who has even a small portion of the Spirit in him does this. What did our ancestor do when seeking a child from God? Be attentive, then, to your own spirit, for one should not be disloyal to the wife he took in his 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."