The bible starts from Genesis and ends in Revelation. Every pastor called of God should not exclude anything in the bible. The foundation of your walk with God is your salvation. Jesus says, except a man be born again he shall not see the kingdom of God. It is after salvation that other promises of God can now follow. In Mt. 6:33 Jesus says "seek ye first the kingdom of God and its righteousness, and all other things shall be added unto thee". I doubt if any pastor will preach prosperity without preaching salvation, maybe you were absent on the days salvation was being preached, or maybe you tuned the pastor out because it was not something you want to hear.