Eph.2:8-9 For by grace are ye saved through faith and that not of yourselves: it is the gift of God: Not of works, lest any man should boast.
Titus 3:5 Not by works of righteousness which we have done, but according to his mercy he saved us, by the washing of regeneration, and renewing of the Holy Ghost
Do you consider the sacraments righteous works?
Paul was speaking of the customs of Mosaic law, chiefly circumcision.
No, Catholics do not believe we are saved by circumcision.
I consider that there are many Bible verses to prove both sides.
If there wasn’t, all of the debate would be over.