Jeremiah 21:6

21:6 I will kill everything living in Jerusalem, ¹  people and animals alike! They will die from terrible diseases.

Jeremiah 31:30

31:30 Rather, each person will die for his own sins. The teeth of the person who eats the sour grapes will themselves grow numb. ² 

[21:6]  ¹ map For location see Map5 B1; Map6 F3; Map7 E2; Map8 F2; Map10 B3; JP1 F4; JP2 F4; JP3 F4; JP4 F4.

[31:30]  ² sn The Lord answers their charge by stating that each person is responsible for his own sin and will himself bear the consequences. Ezek 18 has a more extended treatment of this and shows that this extends not just to the link between parents and children but between former behavior and future behavior of the same individual. To a certain extent the principle articulated here is anticipatory of the statement in v. 34 which refers to the forgiveness of former sins.