Given the high status the Gospel of John gives to Jesus, it is not surprising that certain passages from this Gospel would play important roles when questions arose concerning Jesus precise relation to the one God of Israel. In an adapted excerpt from the second volume in the Concordia Commentary series on the Gospel of John, read about the classic interpretation to John 10:30.
For unto us a Child is born, unto us a Son is given; and the government shall be upon His shoulder. And His name shall be called Wonderful, Counselor, The Mighty God, The Everlasting Father, The Prince of Peace.
Isaiah identifies the Son as The Mighty God and The Everlasting Father...can it be any clearer?