'Watchful' in the Bible
Therefore you people shall be watchful to do as the Lord your God has commanded you; you shall not turn aside to the right hand or to the left.
Hear therefore, O Israel, and be watchful to do them, that it may be well with you and that you may increase exceedingly, as the Lord, the God of your fathers, has promised you, in a land flowing with milk and honey.
And it will be accounted as righteousness (conformity to God's will in word, thought, and action) for us if we are watchful to do all this commandment before the Lord our God, as He has commanded us.
All the commandments which I command you this day you shall be watchful to do, that you may live and multiply and go in and possess the land which the Lord swore to give to your fathers.
And you shall be watchful to do all the statutes and ordinances which I set before you this day.
These are the statutes and ordinances which you shall be watchful to do in the land which the Lord, the God of your fathers, gives you to possess all the days you live on the earth.
Be watchful not to offer your burnt offerings in every place you see.
Be watchful and obey all these words which I command you, that it may go well with you and with your children after you forever, when you do what is good and right in the sight of the Lord your God.
Be watchful that you are not ensnared into following them after they have been destroyed before you and that you do not inquire after their gods, saying, How did these nations serve their gods? We will do likewise.
Whatever I command you, be watchful to do it; you shall not add to it or diminish it.
And you shall [earnestly] remember that you were a slave in Egypt, and you shall be watchful and obey these statutes.
And you shall do according to the decision which they declare to you from that place which the Lord chooses; and you shall be watchful to do according to all that they tell you;
The vow which has passed your lips you shall be watchful to perform, a voluntary offering which you have made to the Lord your God, which you have promised with your mouth.
Take heed in the plague of leprosy, that you watch diligently and do according to all that the Levitical priests shall teach you. As I commanded them, so you shall be watchful and do.
If you will listen diligently to the voice of the Lord your God, being watchful to do all His commandments which I command you this day, the Lord your God will set you high above all the nations of the earth.
And the Lord shall make you the head, and not the tail; and you shall be above only, and you shall not be beneath, if you heed the commandments of the Lord your God which I command you this day and are watchful to do them.
But if you will not obey the voice of the Lord your God, being watchful to do all His commandments and His statutes which I command you this day, then all these curses shall come upon you and overtake you:
If you will not be watchful to do all the words of this law that are written in this book, that you may [reverently] fear this glorious and fearful name [and presence] -- "the lord your god -- "
Assemble the people -- "men, women, and children, and the stranger and the sojourner within your towns -- "that they may hear and learn [reverently] to fear the Lord your God and be watchful to do all the words of this law,
He said to them, Set your [minds and] hearts on all the words which I command you this day, that you may command them to your children, that they may be watchful to do all the words of this law.
Be very watchful of yourselves, therefore, to love the Lord your God.
And Jesus began to tell them, Be careful and watchful that no one misleads you [about it].
Accordingly then, let us not sleep, as the rest do, but let us keep wide awake (alert, watchful, cautious, and on our guard) and let us be sober (calm, collected, and circumspect).