James 2:13

For the person who has shown no mercy will be judged without mercy. [For] mercy wins out over condemnation.

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 19:14-18

And the armies in heaven, dressed in expensive, white, clean linen, followed Him, [riding] on white horses.

Treasury of Scripture Knowledge

Summary

They shall hold the bow and the lance: they are cruel, and will not shew mercy: their voice shall roar like the sea, and they shall ride upon horses, every one put in array, like a man to the battle, against thee, O daughter of Babylon.

They are cruel

Shall ride

Bible References

They are cruel

James 2:13
For the person who has shown no mercy will be judged without mercy. [For] mercy wins out over condemnation.
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].

Shall ride

Revelation 19:14
And the armies in heaven, dressed in expensive, white, clean linen, followed Him, [riding] on white horses.