Predestination in Chapter 3 paragraphs 3 and 4 of the LBCF - Part 2 (Angels)

The discussion revolves around angels in regards to their "election". There is no redemption for angels, but our Confession does talk about "elect angels".

3. By the decree of God, for the manifestation of his glory, some men and angels are predestinated, or foreordained to eternal life through Jesus Christ, to the praise of his glorious grace; others being left to act in their sin to their just condemnation, to the praise of his glorious justice.
   (1 Timothy 5:21; Matthew 25:34; Ephesians 1:5, 6; Romans 9:22, 23; Jude 4)

4.These angels and men thus predestinated and foreordained, are particularly and unchangeably designed, and their number so certain and definite, that it cannot be either increased or diminished.
(2 Timothy 2:19; John 13:18)