'Be on Your Guard' in the Bible
“Only be on your guard and diligently watch yourselves, so that you don’t forget the things your eyes have seen and so that they don’t slip from your mind as long as you live. Teach them to your children and your grandchildren.
so he told him: “My father Saul intends to kill you. Be on your guard in the morning and hide in a secret place and stay there.
“But you, be on your guard! They will hand you over to sanhedrins, and you will be flogged in the synagogues. You will stand before governors and kings because of Me, as a witness to them.
In these circumstances, a crowd of many thousands came together, so that they were trampling on one another. He began to say to His disciples first: “Be on your guard against the yeast of the Pharisees, which is hypocrisy.
Be on your guard. If your brother sins, rebuke him, and if he repents, forgive him.
“Be on your guard, so that your minds are not dulled from carousing, drunkenness, and worries of life, or that day will come on you unexpectedly
Therefore, dear friends, since you know this in advance, be on your guard, so that you are not led away by the error of lawless people and fall from your own stability.