Ezra 7:25 And thou, Ezra, after the wisdom of thy God, that is in thine hand, set magistrates and judges, which may judge all the people that are beyond the river, all such as know the laws of thy God; and teach ye them that know them not.

Luke 12:11 And when they bring you unto the synagogues, and unto magistrates, and powers, take ye no thought how or what thing ye shall answer, or what ye shall say:

Acts 16:20 And brought them to the magistrates, saying, These men, being Jews, do exceedingly trouble our city,
  22 And the multitude rose up together against them: and the magistrates rent off their clothes, and commanded to beat them.
  35 And when it was day, the magistrates sent the serjeants, saying, Let those men go.
  36 And the keeper of the prison told this saying to Paul, The magistrates have sent to let you go: now therefore depart, and go in peace.
  38 And the serjeants told these words unto the magistrates: and they feared, when they heard that they were Romans.

Titus 3:1 Put them in mind to be subject to principalities and powers, to obey magistrates, to be ready to every good work,