'Watchman' in the Bible

“Son of man, I have appointed you 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 and say to them, ‘If I bring a sword upon 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 a sword comes and takes a person from them, he is taken away in his iniquity; but his blood I will require from the watchman’s hand.’

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