I've been invited to preach at a Pentecostal church. The pastor has said he is comfortable with Baptist doctrine and trusts my interpretation of God's word. This pastor is a man that has been praying for me and wishes to encourage me. Should I do it, being that it is a Pentecostal congregation of believers? 1) If not, why not? 2) If so, what should I be on guard for? I have attended services at this church once at the invitation of this pastor.