The view that one can be ‘united to Christ’ and not receive all the benefits of Christ’s mediation, including perseverance, in that effectual union is contrary to the Westminster Standards. (Emphasis Added)Now look at this section from the SJC’s Leithart Ruling:
The Court finds Dr. Leithart’s views on union with Christ and apostasy to be in accord with the Standards (SJC Ruling, p. 25.4ff.)...Dr. Leithart does believe that some who are united with Christ will not persevere in faith and so will not be saved (Trial Transcript, p. 178.12ff.).