Ephesians 6:5 Ephesians 6

Servants, be obedient to them that are your masters according to the flesh, with fear and trembling, in singleness of your heart, as unto Christ; KJV...

Acts 2:46 Acts 2

And they, continuing daily with one accord in the temple, and breaking bread from house to house, did eat their meat with gladness and singleness of heart, KJV...