The Bible makes it clear in many passages of scripture that man is saved through
belief/faith - "apart from any precursors, and apart from a requirement to keep the Mosaic Law." (
John 1:12;
3:15,
16,
18,
36;
5:24;
6:29,
40,
47;
11:25,
26;
Acts 10:43;
13:39;
15:7-9;
16:31;
26:18;
Romans 1:16;
3:24-28;
4:5-6;
5:1-2;
10:4;
1 Corinthians 1:21;
Galatians 2:16;
3:6-14,
26;
Ephesians 2:8,
9;
Philippians 3:9;
2 Timothy 3:15;
Hebrews 10:39;
1 John 5:13 etc..).
The Bible also makes it clear in many passages of scripture that
saving faith in Christ is a faith that
has commensurate works that demonstrate that one's faith in Christ is not just a profession, but is in deed and in truth.
You seem to be having trouble believing both of these facts, which no doubt you do, but also admitting that works are required to remain saved. However, if one begins with faith in Christ that produces commensurate works, and one drifts into a professional faith that lacks commensurate works, one has ceased to have the saving faith that genuinely trust in Jesus, and has fallen away into a dead faith that trusts instead in a set of doctrinal propositions.