Purchased with God's blood?

Hi Cousin,

Acts 20:28 came up today in church:

"Be on guard for yourselves and for all the flock, among which the Holy Spirit has made you overseers, to shepherd the church of God which He purchased with His own blood."

The New World Translation renders it:

"Pay attention to yourselves and to all the flock, among which the holy spirit has appointed YOU overseers, to shepherd the congregation of God, which he purchased with the blood of his own [Son]."

Among translators, I believe the Watchtower is alone in adding the word "Son" to the passage. (I will give them credit for adding brackets to indicate the word was not there to begin with.)

If you look at a Greek Interlinear (such as this) you'll see that the translators of the NWT deviated from the Greek... which is tragic, because it's obviously very significant.

Mike