Saul (David’s own father-in-law) sent men to lie in wait at David’s house to assassinate him. Like a pack of wild dogs, these men were willing to prey on an innocent man. But God proved stronger than the king’s evil plot, and thus David praised God, his strength.
It may be that people at work are threatened by your value system or that your unbelieving family doesn’t relate to the whole “God thing.” That’s when the snarling and sniping begins. Take heart! God can protect you in a hostile environment. You, too, can say, “He is my strength.”