Nay. They are not. People who imagine that they are somehow justified by faith only have been admonished by the law which saith:
"Add thou not unto his words, lest he reprove thee, and thou be found a liar."
— (Proverbs 30:6).
It is written again:
"Ye shall not add unto the word which I...
Cling to your faith in Christ, and keep your conscience clear. For some people have deliberately violated their consciences; as a result, their faith has been shipwrecked. 1 Timothy 1:19
John 3:36 (NKJV) says, "He who believes in the Son has everlasting life," so you clearly need faith in...