Galatians 5 unpacks two lifestyles. One lived in the flesh that leads to separation from Christ and one lived in the Spirit that unites you with Christ.
After three chapter of laying before us how we are saved, Paul now address the impact of being saved. Namely being adoptive sons of God.
Galatians 2 implores us not to let legalism or hypocrisy rule our lives, but our faith in Jesus Christ.