'Simplicity' in the Bible

Daily also continuing with one accord in the temple, breaking also at every house bread, they were partaking of food in gladness and simplicity of heart,

or he who is exhorting -- 'In the exhortation!' he who is sharing -- 'In simplicity!' he who is leading -- 'In diligence?' he who is doing kindness -- 'In cheerfulness.'

For our glorying is this: the testimony of our conscience, that in simplicity and sincerity of God, not in fleshly wisdom, but in the grace of God, we did conduct ourselves in the world, and more abundantly toward you;

and I fear, lest, as the serpent did beguile Eve in his subtilty, so your minds may be corrupted from the simplicity that is in the Christ;

The servants! obey the masters according to the flesh with fear and trembling, in the simplicity of your heart, as to the Christ;

The servants! obey in all things those who are masters according to the flesh, not in eye-service as men-pleasers, but in simplicity of heart, fearing God;