'Free' in the Bible

Defraud not one another, except by consent for a time, that ye may be free for fasting and prayer, and again may come together, that the Adversary may not tempt you because of your incontinence;

a servant -- wast thou called? be not anxious; but if also thou art able to become free -- use it rather;

A wife hath been bound by law as long time as her husband may live, and if her husband may sleep, she is free to be married to whom she will -- only in the Lord;

Am not I an apostle? am not I free? Jesus Christ our Lord have I not seen? my work are not ye in the Lord?

for being free from all men, to all men I made myself servant, that the more I might gain;