Torch Harrison is correct,
Most get their authority from their own Institutional Churches and Not Christ. Some have various degrees of the truth but not the whole truth otherwise there would not be a need for so many Churches. Yes, there are those that have received the laying on of hands and the Holy Spirit. It is by their fruits that they are known, Matthew 7:13-20. Even here though, God's Church has very many problems if you studied the Chapters in Revelation 2 & 3 about the Churchs of God you will see what some of the problems were and are today.
Solomon said the whole duty of all of us males or females is to fear God and Keep his Commandments Ecclesiastes 12:13-14. Also to let your lights of truth shine on others, Matthew 5:14--20. It takes a lot of good faith and good works with God living in us, James 2:17-26, 1 Corinthians 6:19-20.