This Sunday, we will hear from Luke 17:1-10.  In this passage, Jesus instructs believers on how to interact with sin - both in their lives, and in the lives of others.  With a number of different exhortations:

Be aware of sin.  Be on guard against sin.  Watch out for sin.  Do everything in your power to keep others from sinning (rather than encouraging them to sin).  When you sin against someone else, repent.  When they sin against you, forgive.

When the disciples hear these commands, they object, thinking that they are impossible to obey.  But Jesus reassures that this is the life that he has called them to.

Resources
How To Prepare For Sunday