Genesis 3:17-19 NIV

17 To Adam he said, “Because you listened to your wife and ate fruit from the tree about which I commanded you, ‘You must not eat from it,’ “Cursed is the ground because of you; through painful toil you will eat food from it all the days of your life.
18 It will produce thorns and thistles for you, and you will eat the plants of the field.

References for Genesis 3:18

19 By the sweat of your brow you will eat your food until you return to the ground, since from it you were taken; for dust you are and to dust you will return.”

References for Genesis 3:19