Belief (or simply "faith") is indeed all that is required for salvation:
Ephesians 1:13, 2:8-9, Romans 3:28, Galatians 2:16, 3:6-7, 22-26, John 1:12, 3:15-18, 36, 5:24, 6:40, 11:25-26, 20:31, Acts:10:43, 13:39, 16:31, Romans 1:16, 3:26, 28, 4:5, 20-25, 5:1-2, 9:32-33, 10:4, 10: 9-17, 1 Timothy 1:16, 2 Timothy 3:15, Hebrews 11:7, 16, 1 Peter 1:5, 9, 1 John 5:1a. 5:5, 10, 13.
Ephesians 1:13, 2:8-9, Romans 3:28, Galatians 2:16, 3:6-7, 22-26, John 1:12, 3:15-18, 36, 5:24, 6:40, 11:25-26, 20:31, Acts:10:43, 13:39, 16:31, Romans 1:16, 3:26, 28, 4:5, 20-25, 5:1-2, 9:32-33, 10:4, 10: 9-17, 1 Timothy 1:16, 2 Timothy 3:15, Hebrews 11:7, 16, 1 Peter 1:5, 9, 1 John 5:1a. 5:5, 10, 13.
One who believes all they have to do is say they believe in Jesus and that's it are wrong when they also disavow baptism, and disavow they are changed and no longer live as they did as condemned sinners in their sin because that would be works salvation.
Reminds me of the thug rapper millionaire celebrity types. Drug dealers, pimps, whore mongers, drug users, still banging through they wear a diamond encrusted cross. They think they are what passes for Christian.