Genesis 4:8

4:8 And Cain talked with Abel his brother: and it came to pass, when they were in the field, that Cain rose up against Abel his brother, and slew him.

Hebrews 11:4

11:4 By faith Abel offered unto God a more excellent sacrifice than Cain, by which he obtained witness that he was righteous, God testifying of his gifts: and by it he being dead yet speaketh.

Hebrews 12:24

12:24 And to Jesus the mediator of the new covenant, and to the blood of sprinkling, that speaketh better things than [that of] Abel.

Hebrews 12:1

12:1 Wherefore seeing we also are compassed about with so great a cloud of witnesses, let us lay aside every weight, and the sin which doth so easily beset [us], and let us run with patience the race that is set before us,

John 3:11-12

3:11 Verily, verily, I say unto thee, We speak that we do know, and testify that we have seen; and ye receive not our witness. 3:12 If I have told you earthly things, and ye believe not, how shall ye believe, if I tell you [of] heavenly things?