'Principles' in the Bible

Did I display any vacillation or caprice in this? Or the purposes which I form--do I form them on worldly principles, now crying "Yes, yes," and now "No, no"?

I beseech you not to compel me when present to make a bold display of the confidence with which I reckon I shall show my 'courage' against some who reckon that we are guided by worldly principles.

And you masters, act towards your slaves on the same principles, and refrain from threats. For you know that in Heaven there is One who is your Master as well as theirs, and that merely earthly distinctions there are none with Him.