6 Your servant had two sons, and they both fought in the open field, and there was no one to part them. One struck the other and killed him.
2 Samuel 14:6 Cross References - VIN
Genesis 4:8
8 Then Cain said to his brother Abel, "Let us go out into the field." And when they were in the field, Cain rose up against his brother Abel and killed him.
Exodus 2:13
13 And he went out the day after and saw two of the Hebrews fighting: and he said to him who was in the wrong, Why are you fighting your brother?