Matthew 6:22
"The lamp of the body is the eye. If therefore your eye is sound, your whole body will be full of light.
Luke 11:34-36
The lamp of the body is the eye. Therefore when your eye is good, your whole body is also full of light; but when it is evil, your body also is full of darkness.
2 Corinthians 11:3
But I am afraid that somehow, as the serpent deceived Eve in his craftiness, so your minds might be corrupted from the simplicity that is in Christ.
Colossians 3:22
Servants, obey in all things those who are your masters according to the flesh, not just when they are looking, as men pleasers, but in singleness of heart, fearing God.
Acts 2:46
Day by day, continuing steadfastly with one accord in the temple, and breaking bread at home, they took their food with gladness and singleness of heart,
Ephesians 6:5
Servants, be obedient to those who according to the flesh are your masters, with fear and trembling, in singleness of your heart, as to Christ;