Revelation 18:6

Give back to her the way [i.e., the kind of treatment] she has given back [to others], and repay her double for what she has done. Mix a double dose for her from her own cup.

2 Thessalonians 2:4

[for] he opposes [the true Gospel message] and exalts himself against everything that is called "God" or that which is worshiped. So, he sits in God's temple [i.e., the church ?] displaying himself as [though he were] God.

Revelation 13:5-6

And the beast was given [by the dragon ?] a mouth for making proud claims and [speaking] blasphemous words, and the authority to act for forty-two months [See 11:2; 12:6].

Revelation 16:6

For they [i.e., the followers of the beast. See verse 2] have shed the blood of God's holy people and [their] prophets, and you have given them blood to drink because they deserved it [i.e., these persecutors deserved the punishment they received for shedding blood].

Treasury of Scripture Knowledge

Summary

Call together the archers against Babylon: all ye that bend the bow, camp against it round about; let none thereof escape: recompense her according to her work; according to all that she hath done, do unto her: for she hath been proud against the LORD, against the Holy One of Israel.

Bible References

Recompense

Revelation 16:6
For they [i.e., the followers of the beast. See verse 2] have shed the blood of God's holy people and [their] prophets, and you have given them blood to drink because they deserved it [i.e., these persecutors deserved the punishment they received for shedding blood].
Revelation 18:6
Give back to her the way [i.e., the kind of treatment] she has given back [to others], and repay her double for what she has done. Mix a double dose for her from her own cup.

For she hath

2 Thessalonians 2:4
[for] he opposes [the true Gospel message] and exalts himself against everything that is called "God" or that which is worshiped. So, he sits in God's temple [i.e., the church ?] displaying himself as [though he were] God.
Revelation 13:5
And the beast was given [by the dragon ?] a mouth for making proud claims and [speaking] blasphemous words, and the authority to act for forty-two months [See 11:2; 12:6].