Verses with the word eatest in the Old Testament (3 verses):

Genesis 2:17
But of the tree of the knowledge of good and evil, thou shalt not eat of it: for in the day that thou eatest thereof thou shalt surely die.

1 Samuel 1:8
Then said Elkanah her husband to her, Hannah, why weepest thou? and why eatest thou not? and why is thy heart grieved? am not I better to thee than ten sons?

1 Kings 21:5
But Jezebel his wife came to him, and said unto him, Why is thy spirit so sad, that thou eatest no bread?