Matthew 6:22
The light of the body is thine eye: wherefore if thine eye be single, all thy body shall be full of light.
Luke 11:34-36
The light of thy body is the eye. Therefore, when thine eye is single: then is all thy body full of light. But if thine eye be evil: then shall all thy body also be full of darkness.
2 Corinthians 11:3
But I fear, lest as the serpent beguiled Eve through his subtlety, even so your wits should be corrupt from the singleness that is in Christ.
Colossians 3:22
Servants, be obedient unto your bodily masters in all things: not with eye service as men pleasers, but in singleness of heart fearing God.
Acts 2:46
And they continued daily with one accord in the temple, and brake bread in every house, and did eat their meat together with gladness and singleness of heart, praising God,
Ephesians 6:5
Servants, be obedient unto your carnal masters, with fear and trembling, in singleness of your hearts, as unto Christ: