[.45 Long Colt]

Ephesians 2:8-9
King James Version (KJV)

8 For by grace are ye saved through faith; and that not of yourselves: it is the gift of God:

9 Not of works, lest any man should boast.

[matthewrobertolson]

If you would really like to understand the Catholic position, watch this video (it's under 2 minutes) that explains that passage in context: link