What does 1 Samuel 16:2 mean?

Samuel said, 'But if Saul hears about this, he’ll kill me.' God said, 'Take a young cow with you and say, “I’ve come to offer a sacrifice to God.”' 1 Samuel 16:2 - Modern Text Bible

(Samuel is afraid for his life, but God gives him a way to go to Bethlehem without raising suspicion—by making it look like a normal religious visit.)