'Whoever' in the Bible

Look, you have driven me out today from the face of the ground, and from your face I must hide. I will be a wanderer and a fugitive on the earth, and it will happen that whoever finds me will kill me."

Then Yahweh said to him, "Therefore, whoever kills Cain will be avenged sevenfold." Then Yahweh put a sign on Cain so that whoever found him would not kill him.

Whoever is found with it from among your servants shall die. And moreover, we will become slaves to my lord."