Galatians 5:3

3 and I testify again to every man circumcised, that he is a debtor to do the whole law;

Galatians 5:3 In-Context

1 In the freedom, then, with which Christ did make you free -- stand ye, and be not held fast again by a yoke of servitude;
2 lo, I Paul do say to you, that if ye be circumcised, Christ shall profit you nothing;
3 and I testify again to every man circumcised, that he is a debtor to do the whole law;
4 ye were freed from the Christ, ye who in law are declared righteous; from the grace ye fell away;
5 for we by the Spirit, by faith, a hope of righteousness do wait for,
Young's Literal Translation is in the public domain.