(Acts 15:1) “Some who had come down from Judea were instructing the brothers, ‘Unless you are circumcised according to the Mosaic practice, you cannot be saved.’”
Unfortunately, they still exist; people who think they know better than God what is essential in order to get into heaven. Listen to your heart. For that is where God’s law is truly written. (See Jeremiah 31:33, Hebrews 8:10 & 10:16) Follow your heart. For it will lead you to heaven.