John Gill Commentary Ezekiel 33:5

"He heard the sound of the trumpet, and took not warning; his blood shall be upon him; whereas if he had taken warning, he would have delivered his soul." — Ezekiel 33:5 (ASV)

He heard the sound of the trumpet The alarm of the enemy being at hand, and so was inexcusable: and took not warning ; which that gave him: his blood shall be upon him ; the fault shall be imputed to himself, and not another; and he must bear it himself, and answer for it, and not the watchman: but he that takes warning shall deliver his soul ; who, hearing the sound of the trumpet, prepares for his own defence, and provides for his safety, he shall save his life, and not fall into the enemies' hands.