I loved this thought from the March 5 devotional from Jack Miller (in Saving Grace: Daily Devotions from Jack Miller) –
Christ has set us free from the chains of the law. But we have the tendency to create new circumcisions—new rules, new duties. We become burdened with obligations. Are you trying to fulfill your obligations by heading back to slavery, back to Mount Sinai, back to that place of no mercy? Remember it is all or nothing. If you put yourself under obligation to one part of the law, then you are responsible for keeping the whole law. You can’t have justification by faith in Jesus Christ plus something else. You might think that you believe that salvation is by grace through faith alone, but think about the obligations you are burdened by. Think about how you unconsciously live as if the fulfillment of your Christian responsibilities earns you God’s favor. Almost anything can become a new circumcision: your approach to tithing, your Christian duties, an orderly home, and the list goes on. Think about what drives you. Do you live under the law at Mount Sinai or have you joined the celebration of the justified on Mount Zion? Remember, for the believer, the judgment day has come and gone. God has set you free to be his own dear child!
Miller, C. John. Saving Grace: Daily Devotions from Jack Miller (p. 65). New Growth Press. Kindle Edition.