Is it possible that more of the angels could sin?

First Timothy 5:21 says, “I charge you, in the sight of God and Christ Jesus and the elect angels, to keep these instructions without partiality, and to do nothing out of favoritism.” No matter what view one takes on the doctrine of election, the Bible is clear that God was somehow involved in choosing who would be saved—or, in this case, which of the angels would not sin.

God is sovereign in all His choices: He chose Abraham to be the father of many nations (Genesis 17:4–5); He chose Israel to be His special people (Genesis 17:7); He chose Mary to be the mother of Jesus (Luke 1:35–37); He chose the twelve apostles to live with the Lord Jesus for three years and learn from Him (Mark 3:13–19); and He chose Paul to bring the gospel to many people (Acts 9:1–19). In the same way, He has chosen people “from every tribe and language and people and nation” (Revelation 5:9) to come to faith in Christ. Those whom He has chosen will come to Him, and He will never cast them out (John 6:37).

It seems that God also made a choice concerning the angels. God’s holy angels are “elect,” meaning that God has chosen them. Perhaps God gave all the angels a one-time choice to obey Him or not. Those that sinned and followed Lucifer are condemned, never to be redeemed. Those that chose to remain loyal to God are called “elect” and are confirmed in holiness. The Bible gives no reason to believe that more of the angels could sin; it does not seem possible that the holy angels could lose their “elect” status.