Watchful
From BiblePortal Wikipedia
Webster's Dictionary [1]
(a.) Full of watch; vigilant; attentive; careful to observe closely; observant; cautious; - with of before the thing to be regulated or guarded; as, to be watchful of one's behavior; and with against before the thing to be avoided; as, to be watchful against the growth of vicious habits.
King James Dictionary [2]
Watchful, a. Vigilant attentive careful to observe observant cautious. It has of before the thing to be regulated, as to be watchful of ones behavior and against, before the thing to be avoided, as to be watchful against the growth of vicious habits.
