Eiserchomai means to enter, go into, or come in — physical or metaphorical entry into a space, state, or relationship. Appearing about 194 times in the NT, it is a compound of eis (into) and erchomai (to come/go). It describes entering buildings, cities, the kingdom, rest, temptation, and glory. It is one of the most theologically loaded spatial verbs in the NT.
Entry (eiserchomai) is a major metaphor in the NT for salvation and the kingdom. Jesus commands "Enter [eiselthate] through the narrow gate" (Matthew 7:13). The kingdom "enters" as Jesus heals and casts out demons. Hebrews 3–4 builds an extended argument about entering God's rest (eiserchomai eis katapausin) — connecting the Promised Land entry with Sabbath rest with the eschatological rest Christ provides. In John's Gospel, Jesus is the Door through which the sheep eiserchomai (John 10:9). Entry is both invitation and requirement — requiring the right mediator and the right posture.