'Watchman' in the Bible

“Son of man, I have appointed you as a watchman to the house of Israel; whenever you hear a word from My mouth, warn them from Me.

“Son of man, speak to the sons of your people [who are exiled in Babylon] and say to them, ‘If I bring a sword on a land, and the people of the land take one man from among them and make him their watchman,

But if the watchman sees the sword coming and does not blow the trumpet and the people are not warned, and the sword comes and takes any one of them, he is taken away because of his corruption and sin; but I will require his blood from the watchman’s hand.’

“Now as for you, son of man, I have made you a watchman for the house of Israel; so you shall hear a message from My mouth and give them a warning from Me.