Three.
The word "immediately" appears 41 times in the Gospel of Mark.
In the King James (and New King James) translations, the word "authority" appears in Mark's gospel seven times: 1:22, 27; 10:42; 11:28, 29, 33; 13:34.
In Mark's gospel while Jesus was a Human, the most important thing he did was bear witness to the Truth about his Father and God's Kingdom.
Because Mark's gospel is the word of God which is truth and his gospel states: Mark 1.1. The beginning of the gospel of Jesus Christ, the Son of God;
The phrase "kingdom of God" appears in Luke's gospel thirty-three times.
42
In order they appear in the New Testament; Matthew, Mark, Luke & John
He wrote the second, the Gospel of Mark.
8
All Bible scriptures have authority for Christians. Since Mark's Gospel is also Holy Scripture inspired by God, it too has authority as God's word of truth.
They are the Gospel of Matthew,Gospel of Mark,Gospel of Luke,and the Gospel of John.
Mark was one of the writers of the Gospel accounts. The Gospel according to Mark is the second one.