'Deadly' in the Bible

And they sent and gathered all the lords of the Philistines, and said, Send away the ark of the God of Israel, and let it go again to its own place, that it kill us not, and our people. For there was deadly alarm throughout the city: the hand of God was very heavy there;

From the wicked that destroy me, my deadly enemies, who compass me about.

they shall take up serpents; and if they should drink any deadly thing it shall not injure them; they shall lay hands upon the infirm, and they shall be well.