To reconcile John 3:18 with Romans 2:6, 14-15 and 1 Tim 4:10.
Here is a context to consider, the slaying of another sacred cow; that reconciling contradictory Scripture stretches what it means to reconcile to straight up eisegesis rationalization. Bishop John Shelby Spong explores this in
Why Christianity Must Change or Die from the realization evolving theology - even among Apostolic writers.
The earlier the writing, the more divergant the text is from today's mainstream Christianity. Spong shows the answer of when Jesus became the son of God got earlier with later writings:
- After the resurrection
- After the baptism
- At conception
- Before Creation