Formula: How to know right from wrong

Excerpt taken from the Pursuit of Holiness:

The formula asks 4 questions based on 3 verses in 1 Corinthians:

1. “‘Everything is permissible for me’ — but not everything is beneficial” (1 Corinthians 6:12). Question 1: Is it helpful — physically, spiritually, and mentally?
2. “‘Everything is permissible for me’ — but I will not be mastered by anything” (1 Corinthians 6:12). Question 2: Does it bring me under its power?
3. “Therefore, if what I eat causes my brother to fall into sin, I will never eat meat again, so that I will not cause him to fall” (1 Corinthians 8:13). Question 3: Does it hurt others?
4. “So whether you eat or drink or whatever you do, do it all for the glory of God” (1 Corinthians 10:31). Question 4: Does it glorify God?

These questions are so searching, I’m afraid to use them. But we must ask them live the life God wants us to live. ‘Tis tough…