1 Thessalonians 3:4

For indeed when we were with you, we kept telling you in advance that we were going to suffer affliction; and so it came to pass, as you know.

1 Thessalonians 2:14

For you, brethren, became imitators of the churches of God in Christ Jesus that are in Judea, for you also endured the same sufferings at the hands of your own countrymen, even as they did from the Jews,

John 16:1-3

These things I have spoken to you so that you may be kept from stumbling.

Acts 17:1

Now when they had traveled through Amphipolis and Apollonia, they came to Thessalonica, where there was a synagogue of the Jews.

Acts 17:5-9

But the Jews, becoming jealous and taking along some wicked men from the market place, formed a mob and set the city in an uproar; and attacking the house of Jason, they were seeking to bring them out to the people.

Acts 17:13

But when the Jews of Thessalonica found out that the word of God had been proclaimed by Paul in Berea also, they came there as well, agitating and stirring up the crowds.

Acts 20:24

But I do not consider my life of any account as dear to myself, so that I may finish my course and the ministry which I received from the Lord Jesus, to testify solemnly of the gospel of the grace of God.

2 Corinthians 8:1-2

Now, brethren, we wish to make known to you the grace of God which has been given in the churches of Macedonia,

1 Thessalonians 2:2

but after we had already suffered and been mistreated in Philippi, as you know, we had the boldness in our God to speak to you the gospel of God amid much opposition.

2 Thessalonians 1:4-6

therefore, we ourselves speak proudly of you among the churches of God for your perseverance and faith in the midst of all your persecutions and afflictions which you endure.

Treasury of Scripture Knowledge

Summary

For verily, when we were with you, we told you before that we should suffer tribulation; even as it came to pass, and ye know.

General references

Bible References

We told

John 16:1
These things I have spoken to you so that you may be kept from stumbling.
Acts 20:24
But I do not consider my life of any account as dear to myself, so that I may finish my course and the ministry which I received from the Lord Jesus, to testify solemnly of the gospel of the grace of God.

Even

1 Thessalonians 2:2
but after we had already suffered and been mistreated in Philippi, as you know, we had the boldness in our God to speak to you the gospel of God amid much opposition.
Acts 17:1
Now when they had traveled through Amphipolis and Apollonia, they came to Thessalonica, where there was a synagogue of the Jews.
2 Corinthians 8:1
Now, brethren, we wish to make known to you the grace of God which has been given in the churches of Macedonia,
2 Thessalonians 1:4
therefore, we ourselves speak proudly of you among the churches of God for your perseverance and faith in the midst of all your persecutions and afflictions which you endure.

General references

Ecclesiastes 2:20
Therefore I completely despaired of all the fruit of my labor for which I had labored under the sun.
Luke 21:13
It will lead to an opportunity for your testimony.