Romans 15:29

And I am sure that, when I come unto you, I shall come in the fulness of the blessing of the gospel of Christ.
— Romans 15:29, King James Version

In other translations

World English Bible (WEB)

I know that, when I come to you, I will come in the fullness of the blessing of the gospel of Christ.

American Standard Version (ASV)

And I know that, when I come unto you, I shall come in the fulness of the blessing of Christ.

Young's Literal Translation (YLT)

and I have known that coming unto you--in the fulness of the blessing of the good news of Christ I shall come.