Longer Catechism (Orthodox) 13.305

Chapter 13 — Part I — Baptism

Section 305. Q. What is to be thought of those who sin after Baptism? A. That they are more guilty in their sins than the unbaptized, since they had from God special help to do well, and have thrown it away. For if after they have escaped the pollutions of the world through the knowledge of the Lord and Saviour Jesus Christ, they are again entangled therein and overcome, the latter end is worse with them than the beginning. 2 Peter ii. 20.