"The experience of Ezra while living among the Jews who remained in Babylon was so unusual that it attracted the favorable notice of King Artaxerxes, with whom he talked freely regarding the power of the God of heaven, and the divine purpose in restoring the Jews to Jerusalem. PK 607.2"
"The king answered unto Daniel, and said, Of a truth it is, that your God is a God of gods, and a Lord of kings, and a revealer of secrets, seeing thou couldest reveal this secret."
Both passages describe a situation where a leader (Artaxerxes/Nebuchadnezzar) recognizes the power of God due to the actions and testimony of a faithful servant (Ezra/Daniel). The parallel lies in the impact of the servant's faith on the ruler's perception of God.