Someone whose mind seeks physical things (definition may be broader). While a good eye/whole eye seems to refer to someone whose whole mind is fixed on the Lord.
- “An eye” in the Bible is the term used for our understanding, our mind (Ephesians 1:18). Jesus speaks here about a whole/single eye and an evil eye. He equates an evil eye to someone serving money.
Matthew 6:22 (KJV) The light of the body is the eye: if therefore thine eye be single, thy whole body shall be full of light. 23 But if thine eye be evil, thy whole body shall be full of darkness. If therefore the light that is in thee be darkness, how great is that darkness!  No man can serve two masters: for either he will hate the one, and love the other; or else he will hold to the one, and despise the other. Ye cannot serve God and mammon.
- Proverbs refers to someone troubled over wealth as having an evil eye.
Proverbs 28:22 (YLT) Troubled for wealth is the man with an evil eye, And he knoweth not that want doth meet him.
- Amongst the curses of Deuteronomy, God refers to a person in severe famine, who will not give to anyone else, a man with an evil eye.
Deuteronomy 28:54-55 (KJV) So that the man that is tender among you, and very delicate, his eye shall be evil toward his brother, and toward the wife of his bosom, and toward the remnant of his children which he shall leave: 55 So that he will not give to any of them of the flesh of his children whom he shall eat: because he hath nothing left him in the siege, and in the straitness, wherewith thine enemies shall distress thee in all thy gates.
- Proverbs speaks about not setting your eyes (mind) on physical wealth which is fading away. Then he advocates not eating bread with him that has “an evil eye.”
Proverbs 23:4-6 (KJV) Labour not to be rich: cease from thine own wisdom. 5 Wilt thou set thine eyes upon that which is not [fading wealth]? for riches certainly make themselves wings; they fly away as an eagle toward heaven. 6 Eat thou not the bread of him that hath an evil eye, neither desire thou his dainty meats:
- God says that a person with a “good eye” is blessed themselves and will give.
Proverbs 22:9 (KJV) He that hath a bountiful [lit. Good] eye shall be blessed; for he giveth of his bread to the poor