9 But beware lest somehow this liberty of yours become a stumbling block to those who are weak. 10 For if anyone sees you who have knowledge eating in an idol’s temple, will not the conscience of him who is weak be emboldened to eat those things offered to idols? 11 And because of your knowledge shall the weak brother perish, for whom Christ died? (1 Corinthians 8:9-11, NKJV)
A liberty granted us by the Lord does not mean we must always use it. Indeed, whether or not to use a liberty is regulated by how its use impacts the faith of others. Its use it regulated by love (v. 1). (Paul will apply this principle to himself in 1 Corinthians 8:13 and 9:14-23). Today’s passage warns us not to have a boastful approach to a liberty that diminishes another person’s conscience toward that liberty while elevating ourselves above him (because his conscience is weak toward the liberty). For example, we must not say, “I have this liberty and I am going to use it regardless of how it affects others.” We become a stumbling block (cause of offence) when using our liberty emboldens one with a weak conscience to participate in that liberty (in violation of his conscience). This is how our liberty contributes to another person’s sin. Such a display of arrogant knowledge disregards the soul of another, and is exactly what Paul warned against in verses 1-3 of this chapter. Beware, lest your knowledge (and the liberty it affords) causes a brother to perish.