Genesis 4:8-11

4:8 Cain said to his brother Abel, “Let’s go out to the field.” While they were in the field, Cain attacked his brother Abel and killed him.

4:9 Then the Lord said to Cain, “Where is your brother Abel?” And he replied, “I don’t know! Am I my brother’s guardian?” 4:10 But the Lord said, “What have you done? The voice of your brother’s blood is crying out to me from the ground! 4:11 So now, you are banished from the ground, which has opened its mouth to receive your brother’s blood from your hand.

Hebrews 11:4

11:4 By faith Abel offered God a greater sacrifice than Cain, and through his faith he was commended as righteous, because God commended him for his offerings. And through his faith he still speaks, though he is dead.

Hebrews 12:24

12:24 and to Jesus, the mediator of a new covenant, and to the sprinkled blood that speaks of something better than Abel’s does.

Hebrews 12:1

The Lord’s Discipline

12:1 Therefore, since we are surrounded by such a great cloud of witnesses, we must get rid of every weight and the sin that clings so closely, and run with endurance the race set out for us,

Hebrews 3:12

3:12 See to it, brothers and sisters, that none of you has an evil, unbelieving heart that forsakes the living God.