Revelation 22:18-19

I testify to every one that heareth the words of the prophecy of this book, If any one shall add to them, God will add to him the plagues that are written in this book;

Acts 2:40

And with many other words did he testify and exhort, saying, Save yourselves from this perverse generation.

Acts 20:21

testifying to both Jews and Greeks repentance toward God, and faith in our Lord Jesus.

Galatians 5:3

yea, I testify again to every one who becometh circumcised, that he is bound to keep the whole Law.

Ephesians 4:17

This therefore I say, and charge you in the Lord, that ye no longer walk as the rest of the gentiles walk in the vanity of their mind,

1 Thessalonians 4:6

that no one should go beyond and overreach his brother in the matter; because the Lord is the avenger in respect to all these things, as we also told you before and solemnly testified.

Treasury of Scripture Knowledge

Summary

In those days saw I in Judah some treading wine presses on the sabbath, and bringing in sheaves, and lading asses; as also wine, grapes, and figs, and all manner of burdens, which they brought into Jerusalem on the sabbath day: and I testified against them in the day wherein they sold victuals.

Bible References

I testified

Acts 2:40
And with many other words did he testify and exhort, saying, Save yourselves from this perverse generation.
Acts 20:21
testifying to both Jews and Greeks repentance toward God, and faith in our Lord Jesus.
Galatians 5:3
yea, I testify again to every one who becometh circumcised, that he is bound to keep the whole Law.
Ephesians 4:17
This therefore I say, and charge you in the Lord, that ye no longer walk as the rest of the gentiles walk in the vanity of their mind,
1 Thessalonians 4:6
that no one should go beyond and overreach his brother in the matter; because the Lord is the avenger in respect to all these things, as we also told you before and solemnly testified.
Revelation 22:18
I testify to every one that heareth the words of the prophecy of this book, If any one shall add to them, God will add to him the plagues that are written in this book;