'Be on Your Guard' in the Bible
and when He admonished them, "See to it, be on your guard against the yeast of the Pharisees and the yeast of Herod,"
Moreover in the course of His teaching He said, "Be on your guard against the Scribes who like to walk about in long robes and to be bowed to in places of public resort,
"You yourselves must be on your guard. They will deliver you up to Sanhedrins; you will be brought into synagogues and cruelly beaten; and you will stand before governors and kings for my sake, to be witnesses to them for me.
But as for yourselves, be on your guard: I have forewarned you of everything.
And to the people He said, "Take care, be on your guard against all covetousness, for no one's life consists in the superabundance of his possessions."
Be on your guard. "If your brother acts wrongly, reprove him; and if he is sorry, forgive him;
Be on your guard as to yourself and your teaching. Persevere in these things; for by doing this you will make certain your own salvation and that of your hearers.
You, therefore, dear friends, having been warned beforehand, must continually be on your guard so as not to be led astray by the false teaching of immoral men nor fall from your own stedfastness.