yes Hebrew ch6 and also Hebrews 10:26 warn against sinning willfully. Rom3:24 ; Christians are declared righteous by virtue of Christs sin atoning sacrifice , which is a free gift. Nevertheless 1 Peter 2:16 admonishes; ' be as free people , using your freedom , not as a cover for doing wrong , but as slaves of God'. There are many other scriptures that suggest that christians are expected to practice righteousness until death or until the manifestation of Christ's presence .(1John 2:28,29)
