In Galatians 6, Paul continues to flesh out what really counts. He has repeated his point of justification by faith, through grace, in Christ alone. There was a hinge point in the last verse of chapter 5 where we are told what really matters - faith working through love. It’d be a lot easier to simply trust my righteous deeds!
Love, as God defines, isn’t mere emotion. In 6:1, we get a glimpse of the tougher side of love.
Galatians 6  Brothers, if anyone is caught in any transgression, you who are spiritual should restore him in a spirit of gentleness. Keep watch on yourself, lest you too be tempted.
As you see your brother walking into sin, go after him. The natural mind wants to gossip about him, or even worse drive him deeper into sin and hiding through our malicious speech. Our restoration should not be categorized by harshness. Rather, we must keep a spirit of gentleness. When dealt with harshly, sin has a habit of going into hiding. It gets driven underground, and away from the life giving light of the gospel, and the love and truth that flows from biblical community.
Here is the most difficult part - what if we actually do this? Instead of viewing our brother’s sin as an opportunity for comparison and self-righteousness, what if we sit down for that tough conversation? Instead of gossip and slander, what if we reserve our words for a direct and gentle restoration?
The Lord also points us to our own transgressions. We’re instructed to watch ourselves also. The Spirit knows our hearts, and the challenges that come from lovingly pointing out the sin of others. We make ourselves vulnerable to others as we have tough conversations. Let’s watch ourselves, and the sin which so easily entangles (Hebrews 12:1-2).