[kingpins10]

You misinterpreted Acts 13:48. Christians, once saved, are ordained to good works and to witness and to eternal life.

God knows who will be saved, but he does not choose. His eternal purpose is to have a people that are faithful without being chosen. He already has the angels that were created with the full awareness of His existence. If that were all He wanted, there would be no reason for human creation.

[armydoc]

You misinterpreted Acts 13:48. Christians, once saved, are ordained to good works and to witness and to eternal life.

No, the context is clearly evangelism of non-believers and not discipleship of believers. "Belief" in the context of the passage can in no way be substituted with "good works" or "witness" as you assert.

God knows who will be saved, but he does not choose.

If that were true, it would be tragic since no one would choose God had God not chosen them first. Scripture is clear in that regard

His eternal purpose is to have a people that are faithful without being chosen.

No, His eternal purpose is His own glorification. One of the ways He accomplishes that is exercising His sovereignty in salvation. It is human (sinful) nature and human pride that rebels against the idea that we do not have ultimate control of our salvation.