You can do a few things. First make sure beyond a shadow of a doubt that in all things your heart is in the right place with God, and concerning the the new guy, your pastor (friend), everybody!! Make sure that you aren't holding any grudges or hatred. That is just to clear yourself with the only person that matters God! Then seek God for instruction and direction, and no matter what He tells you, go with it. Because guess what God knows the ending of that situation, or where this is gonna lead you. He knows what level its gonna push you to if you endure this thing and past the test. If God tells you to leave or step down whatever follow Him, but make sure its Him. Like someone mentioned early, talk to the Sr. Pastor, be sure to communicate with Him or Her so that they will know whats going on. But as hard as it is, you gotta try to remove emotion out of it because you don't want it to come off as you being jealous or envious (which I know you aren't, I can feel your pain man..) Proverbs 3:5,6 Trust in the Lord with all your heart (if God has you in this situation, trust Him!!) Lean not to your own understanding(don't try to figure it out.) In ALL your ways acknowledge Him(Talk to Jesus about it!)and He will direct your path.(He is gonna tell you what you need to do, where you need to go, how you need to handle it, everything!!!) Do you believe it? Give it a try.