2 Samuel 1:16

1:16 David said to him, “Your blood be on your own head! Your own mouth has testified against you, saying ‘I have put the Lord’s anointed to death.’”

Yehezkiel 33:4

33:4 but there is one who hears the sound of the trumpet yet does not heed the warning. Then the sword comes and sweeps him away. He will be responsible for his own death. ¹ 

[33:4]  ¹ tn Heb “his blood will be on his own head.”