13:10 What do we learn from this?

This is encouraging the tribulation saints to persevere in faith in spite of persecution (cp Rev 12:11, 17; 14:12-13).

Those who stand in faith can rest assured that their persecutors will also suffer in return for what they do to them.

Those who are martyred for their testimony during the tribulation will be especially blessed.

They will be released from all pain and suffering and go to be with Jesus (cp Rev 14:13).

Believers may have to lose their life in this world to save it in the next (cp Mk 8:34-38; Rev 6:9-11; 7:9-17; 20:4).