What is the context?
After opposition in the synagogue, Paul moves next door to the house of Titus Justus, described as a worshiper of God. The location changes, but the teaching continues. The following verse reports belief by Crispus and his household and by many Corinthians.
Justus’s description points to reverence for God. The account makes a private home part of the setting in which people hear the message; it does not describe a special construction or ceremony that turns the building into a dwelling God needs.
How is this passage commonly understood?
Christians commonly read this move as the opening of another place for teaching after synagogue opposition. Hospitality and reverence help make room for the message; the passage does not require that all believers meet in the same kind of building.
Where does this fit in God's plan?
The house next door becomes part of the continuing witness in Corinth. The following vision promises the Lord’s presence and further work in the city, and Paul remains to teach. 1 Corinthians 3:5–9 later describes the Corinthians themselves as God’s field and building: the lasting work concerns the people He brings to faith and helps to grow.
What is our position?
What Does Worship Actually Mean? notes that Acts 18:7 describes Justus as a person who revered God. The word describes his devotion; the verse does not make the kind of building the measure of that devotion.