Galatians 5:3

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

Luke 16:28

for I have five brothers; that he may give earnest warning to them, that they too may not come into this place of torment.

Galatians 3:10

For as many as rely on the works of the Law are under a curse; for it is written, "Cursed is every one that continueth not in all things which are written in the book of the Law, to do them."

Matthew 23:16

Woe to you, blind guides, that say, Whoever sweareth by the temple, it is nothing; but whoever sweareth by the gold of the temple, is bound.

Matthew 23:18

And, Whoever sweareth by the altar, it is nothing; but whoever sweareth 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 to both Jews and Greeks repentance toward God, and faith in our Lord Jesus.

Romans 2:25

For circumcision is indeed a benefit to thee, if thou keep the Law; but if thou art a breaker of the Law, thy circumcision hath become uncircumcision.

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.

James 2:10-11

For whoever hath kept the whole law, and yet hath offended in one point, hath become guilty of all.

1 John 4:14

And we have seen and bear witness, that the Father hath sent the 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 brothers; that he may give earnest warning to them, that they too may not 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 to both Jews and Greeks repentance toward God, and faith in our Lord Jesus.
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.
1 John 4:14
And we have seen and bear witness, that the Father hath sent the Son to be the Saviour of the world.

A debtor

Galatians 3:10
For as many as rely on the works of the Law are under a curse; for it is written, "Cursed is every one that continueth not in all things which are written in the book of the Law, to do them."
Matthew 23:16
Woe to you, blind guides, that say, Whoever sweareth by the temple, it is nothing; but whoever sweareth by the gold of the temple, is bound.

General references

Luke 5:38
But new wine must be put into new skins.
Galatians 2:3
But not even Titus, who was with me, though he was a Greek, was compelled to be circumcised;
Philippians 3:7
But whatever things were gain to me, those for the sake of Christ I have counted but loss.