Ezekiel 33

 Ezekiel, being called to be a watchman or prophet is told by the Lord - 

"Son of man, speak to the children of thy people, and say unto them, When I bring the sword upon a land, if the people of the land take a man of their coasts, and set him for their watchman:

3 If when he seeth the sword come upon the land, he blow the trumpet, and warn the people;

4 Then whosoever heareth the sound of the trumpet, and taketh not warning; if the sword come, and take him away, his blood shall be upon his own head.

5 He heard the sound of the trumpet, and took not warning; his blood shall be upon him. But he that taketh warning shall deliver his soul.

6 But if the watchman see the sword come, and blow not the trumpet, and the people be not warned; if the sword come, and take any person from among them, he is taken away in his iniquity; but his blood will I require at the watchman’s hand."  (Ezekiel 33:2–6)

As priesthood holders, we a duty to warn, through acts of  love, share, and invite,  or the sin be on our own heads.