Isaiah 1:20

But if you refuse and rebel, You shall be devoured by the sword"; For the mouth of the LORD has spoken.

Surrounding context

1:19 If you are willing and obedient, You shall eat the good of the land;

1:20 But if you refuse and rebel, You shall be devoured by the sword"; For the mouth of the LORD has spoken.

1:21 How the faithful city has become a harlot! It was full of justice; Righteousness lodged in it, But now murderers.