Revelation 22:18-19
I testify to every one that hears the words of the prophecy of this book. If any one adds to them, God shall add to him the plagues written in this book;
Acts 2:40
And with many other words he testified and exhorted, saying, Save yourselves from this perverse generation.
Acts 20:21
testifying both to Jews and Greeks the change of mind to God, and the faith in our Lord Jesus.
Galatians 5:3
For I testify again to every man that is circumcised, that he is bound to perform the whole law.
Ephesians 4:17
This I say then and testify in the Lord, that you no longer walk as the other gentiles walk, in the vanity of their minds,
1 Thessalonians 4:6
that he should not go beyond and defraud his brother in the matter, because the Lord is a punisher of all these, as we also told you before and fully testified.