Philippians 2:28

So, I am all the more eager to send him to you people, so that when you see him again you will be glad, and that my sorrow will be lessened [i.e., in knowing that you are relieved to see that he is well again].

John 16:22

So, you men also will experience grief [i.e., over my suffering and death], but I will see you again and your hearts will be glad. And no one will take away your joy.

Acts 20:38

What saddened them most of all was when Paul said that they would never see his face again. Then they accompanied him to his ship.

2 Corinthians 2:3

And I wrote you this very thing so that when I did come I might not be grieved by those who should make me happy. I had confidence in all of you, that whatever makes me happy [also] makes you happy.

Philippians 2:26-27

For he longed to see all of you and was very distressed because you had heard that he was sick.

2 Timothy 1:4

Remembering how you cried [Note: This was probably when Paul and Timothy last parted], I long to see you [again], so that I can be filled with joy.

1 John 1:3-4

We declare to you what we have seen and heard [concerning Christ], so that you also may share a relationship with us. And indeed, our fellowship is with the Father and with His Son Jesus Christ.

Treasury of Scripture Knowledge

Summary

I sent him therefore the more carefully, that, when ye see him again, ye may rejoice, and that I may be the less sorrowful.

Bible References

Ye see

Philippians 2:26
For he longed to see all of you and was very distressed because you had heard that he was sick.
John 16:22
So, you men also will experience grief [i.e., over my suffering and death], but I will see you again and your hearts will be glad. And no one will take away your joy.
Acts 20:38
What saddened them most of all was when Paul said that they would never see his face again. Then they accompanied him to his ship.
2 Timothy 1:4
Remembering how you cried [Note: This was probably when Paul and Timothy last parted], I long to see you [again], so that I can be filled with joy.

And that

Philippians 2:27
And indeed, he was [so] sick that he almost died, but God had pity on him, and not only on him but also on me, so that I would not have one sorrow on top of another.
2 Corinthians 2:3
And I wrote you this very thing so that when I did come I might not be grieved by those who should make me happy. I had confidence in all of you, that whatever makes me happy [also] makes you happy.
1 John 1:3
We declare to you what we have seen and heard [concerning Christ], so that you also may share a relationship with us. And indeed, our fellowship is with the Father and with His Son Jesus Christ.