Galatians 5:3

For I testify again to every man that is circumcised, he is a debtor to do the whole law.

Luke 16:28

For I have five brethren; that he may testify to them, lest they also come into this place of torment.

Galatians 3:10

for it is written, Cursed is every one who continueth not in all the things which are written in the book of the law, to do them.

Matthew 23:16

Wo to you, ye blind guides; who say, Whosoever shall swear by the temple, it is nothing; but whosoever shall swear by the gold of the temple, he is bound.

Matthew 23:18

And whosoever shall swear by the altar, ye say, it is nothing: but whosoever shall swear by the gift that is upon it, is bound.

Acts 2:40

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

Acts 20:21

Testifying both to Jews and Greeks repentance towards God and faith in our Lord Jesus Christ.

Romans 2:25

Circumcision indeed profiteth, if thou keepest the law; but if thou art a transgressor of the law, thy circumcision is become uncircumcision.

Ephesians 4:17

This therefore I say and testify in the Lord, that ye no longer walk as the rest of the Gentiles, in the vanity of your mind:

1 Thessalonians 4:6

That none circumvent or defraud his brother in this matter, because the Lord is an avenger of all these things, as we have also told you before and testified.

James 2:10-11

For whosoever shall keep the whole law, but offend in one point, is guilty of all.

1 John 4:14

And we have seen and testify, that the Father sent his Son to be the Saviour of the world.

Treasury of Scripture Knowledge

Summary

For I testify again to every man that is circumcised, that he is a debtor to do the whole law.

Bible References

Testify

Luke 16:28
For I have five brethren; that he may testify to them, lest they also come into this place of torment.
Acts 2:40
And with many other words did he testify and exhort, saying, Save yourselves from this perverse generation.
Acts 20:21
Testifying both to Jews and Greeks repentance towards God and faith in our Lord Jesus Christ.
Ephesians 4:17
This therefore I say and testify in the Lord, that ye no longer walk as the rest of the Gentiles, in the vanity of your mind:
1 Thessalonians 4:6
That none circumvent or defraud his brother in this matter, because the Lord is an avenger of all these things, as we have also told you before and testified.
1 John 4:14
And we have seen and testify, that the Father sent his Son to be the Saviour of the world.

A debtor

Galatians 3:10
for it is written, Cursed is every one who continueth not in all the things which are written in the book of the law, to do them.
Matthew 23:16
Wo to you, ye blind guides; who say, Whosoever shall swear by the temple, it is nothing; but whosoever shall swear by the gold of the temple, he is bound.

General references

Luke 5:38
But new wine must be put into new bottles, and both are preserved.
Galatians 2:3
(But neither was Titus, who was with me,
Philippians 3:7
But whatsoever things were gain to me, those I have accounted loss for Christ.