Oh how I love Andrew Murray! He wrote about prayer as a man of prayer, and those who seek to spend as much time as possible in the courts of the Lord can smell the aroma of Jesus on his writings. Here's another gem regarding what it means to be a priest in the priesthood of all believers. This is for all of us, not just super-Christians, so please read his words prayerfully and carefully.
Murray writes, "So a priest is a man who does not live for himself. He lives with God and for God. His work is as God's servant to care for His house, His honor, and His worship, and to make known to men His love and His will. He identifies with others and serves them (Hebrews 5:2). His work is to discover what sins trouble people so that he can bring them before God and offer sacrifices and incense in their name in order to obtain forgiveness and blessing for them, and then to bless them in His name.
"This is the high calling of every believer. 'This is the glory of all his saints' (Psalm 149:9). They are redeemed for the purpose of being God's priests in the midst of the perishing around them. In conformity to Jesus, the Great High Priest, God's priests are to be the ministers and stewards of his grace" (Teach Me to Pray, Bethany House 2002, page 209).