Scripture (inferred): John 10:9; John 14:6; Romans 3:28; Ephesians 2:8–9

Themes: narrow door as Christ not performance; striving as earnest faith not self-effort; confrontation of religious self-reliance; knowing Christ versus proximity to religion; finished work as the basis of entry.

Keywords: narrow door explained, Luke 13 interpretation, strive meaning Greek, salvation by faith, Jesus the door, grace not works, finished work, knowing Christ, self-reliance vs trust