This passage tells us a story about people who struggled to say committed to their new faith, easily being pulled back into old habits and ways. They wanted to abuse the message of freedom to mean that they were not required to have any restraint in their lives. Paul corrects this erroneous thinking and reminds them what the true reason for the spiritual freedom Christ had died for: they are free so that they may be able to serve others in love!
For you have been called to live in freedom, my brothers and sisters. But don’t use your freedom to satisfy your sinful nature. Instead, use your freedom to serve one another in love.
~ Galatians 5:13 [NLT]