Genesis 4:5-7, 13-14

but unto Cain and to his offering he had not respect. And Cain was very wroth, and his countenance fell. And Jehovah said unto Cain, Why art thou wroth? and why is thy countenance fallen? If thou doest well, shall it not be lifted up? and if thou doest not well, sin coucheth at the door; and unto thee shall be its desire; but do thou rule over it.

And Cain said unto Jehovah, My punishment is greater than I can bear. Behold, thou hast driven me out this day from the face of the ground; and from thy face shall I be hid; and I shall be a fugitive and a wanderer in the earth; and it will come to pass, that whosoever findeth me will slay me.