1 Thessalonians 3:4

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

1 Thessalonians 2:14

For ye, brethren, became imitators of the churches of God which are in Judea, in Christ Jesus: for ye suffered the same things also yourselves from your own countrymen, as they too have of the Jews;

John 16:1-3

THESE things have I spoken, that ye might not be stumbled.

Acts 17:1

SO journeying through Amphipolis and Apollonia, they came to Thessalonica, where there was a synagogue of Jews:

Acts 17:5-9

But the unbelieving Jews, roused to a fit of zeal, and taking some of the lowest vulgar men of vile characters, and raising a mob, set the city in an uproar, and besetting the house of Jason, sought them to bring them unto the people.

Acts 17:13

But when the Jews of Thessalonica knew that at Berea also the word of God was preached by Paul, they came thither, and stirred up the populace.

Acts 20:24

Yet I make no account of any [suffering], nor regard my life as of any value to myself, farther than as I may finish my course with joy, and the ministry which I have received of the Lord, to testify fully the Gospel of the grace of God.

2 Corinthians 8:1-2

NOW we inform you, brethren, of the grace of God which hath been bestowed on the churches of Macedonia;

1 Thessalonians 2:2

But though we had suffered before, and were infamously treated, as ye know, at Philippi, we were bold in our God to preach unto you the gospel of God amidst a great conflict.

2 Thessalonians 1:4-6

so that we ourselves make our boast of you among the churches of God, for your patience and fidelity under all your persecutions and afflictions which ye 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 have I spoken, that ye might not be stumbled.
Acts 20:24
Yet I make no account of any [suffering], nor regard my life as of any value to myself, farther than as I may finish my course with joy, and the ministry which I have received of the Lord, to testify fully the Gospel of the grace of God.

Even

1 Thessalonians 2:2
But though we had suffered before, and were infamously treated, as ye know, at Philippi, we were bold in our God to preach unto you the gospel of God amidst a great conflict.
Acts 17:1
SO journeying through Amphipolis and Apollonia, they came to Thessalonica, where there was a synagogue of Jews:
2 Corinthians 8:1
NOW we inform you, brethren, of the grace of God which hath been bestowed on the churches of Macedonia;
2 Thessalonians 1:4
so that we ourselves make our boast of you among the churches of God, for your patience and fidelity under all your persecutions and afflictions which ye endure:

General references

Luke 21:13
And it shall afford you an opportunity to bear your testimony.