Of course it's biblical. There are hundreds of verses that prove this. I can do it with just two:

Isaiah 9:6 New International Version (NIV)
6 For to us a child is born, to us a son is given, and the government will be on his shoulders. And he will be called Wonderful Counselor, Mighty God, Everlasting Father, Prince of Peace.

and

Acts 13 New International Version (NIV)
2 While they were worshiping the Lord and fasting, the Holy Spirit said, “Set apart for me Barnabas and Saul for the work to which I have called them.” 3 So after they had fasted and prayed, they placed their hands on them and sent them off.