In today’s Bible reading, following his brief greeting, Paul assures the Thessalonians that God will take care of those who persecute Christians. I’m sure the Thessalonians were on board with Paul’s promise until they read what is now labeled as 2 Thessalonians 1:7, “This will take place at the revelation of the Lord Jesus from heaven with his powerful angels, when he takes vengeance with flaming fire on those who don’t know God and on those who don’t obey the gospel of our Lord Jesus.” (CSB)
Jesus’ Disciples expected Jesus to come in and right all the wrongs by the Romans against the Jews. They expected Jesus to ride in on a white horse and assume His throne. That didn’t happen because it wasn’t His time to do that. It still isn’t. The Disciples were disappointed. The Thessalonians were disappointed. And persecuted Christians today are disappointed.
It’s another reminder that God’s Word is sure and God’s timing is not our timing. “The Lord does not delay his promise, as some understand delay, but is patient with you, not wanting any to perish but all to come to repentance.” 2 Peter 3:9 (CSB)
God is gracious, merciful, and patient, giving guilty people time to repent. But a time will come when His patience will run out. He will pour out His wrath on the unrighteous. And that will be a day of wailing and gnashing of teeth. That will not be a good day from the perspective of any human. But it will be a good day for God. His righteousness will be vindicated.
Puritan preacher/theologian Jonathan Edwards, in his famous sermon, “Sinners in the Hands of an Angry God” expressed his perspective in similar ways. Contrary to popular thought about the sermon — and Edwards — the sermon is about God’s mercy, not His wrath. The sermon is about God’s pleasure to restrain His wrath in order to give men a chance to repent and turn to Him.
“There is the dreadful pit of the glowing flames of the wrath of God; there is hell’s wide gaping mouth open; and you have nothing to stand upon, nor anything between you and hell but the air; it is only the power and mere pleasure of God that holds you up.”
God is good to grant time for repentance. It’s in the midst of persecution that Believers must remain faithful to His call, despite how things look. Christian Hedonism makes faithfulness in the face of persecution possible.
And it’s part of being ready for Jesus’ return.
 Source: Monergism website