Matthew 6:22
The light of the body is the eye: if therefore thy eye be single, thy whole body will be full of light.
Luke 11:34-36
The light of the body is the eye: therefore when thy eye is single, thy whole body also is full of light; but when thy eye is evil, thy body also is full of darkness.
2 Corinthians 11:3
But I fear, lest by any means, as the serpent beguiled Eve through his subtilty, so your minds should be corrupted from the simplicity that is in Christ.
Colossians 3:22
Servants, obey in all things your masters according to the flesh; not with eye-service, as men-pleasers; but in singleness of heart, fearing God:
Acts 2:46
And they, continuing daily with one accord in the temple, and breaking bread from house to house, ate their food with gladness and singleness of heart,
Ephesians 6:5
Servants, be obedient to them that are your masters according to the flesh, with fear and trembling, in singleness of your heart, as to Christ;