Epistle to Titus in the Bible Encyclopedia - ISBE
TITUS or TITIUS JUSTUS
(Titos or Titios Ioustos (Acts 18:7)): Titus or Titius--for
the manuscripts vary in regard to the spelling--was the
prenomen of a certain Corinthian, a Jewish proselyte
(sebomenos ton Theon). See PROSELYTE). His name seems also
to indicate that he was a Roman by birth. He is altogether a
different person from Titus, Paul's assistant and companion
in some of his journeys, to whom also the Epistle to Titus
is addressed.
Titus or Titius Justus was not the "host of Paul at Corinth"
(HDB, article "Justus," p. 511), for Luke has already
narrated that, when Paul came to Corinth, "he abode with"
Aquila and Priscilla (Acts 18:3). What is said of Titius
Justus is that when the Jews in Corinth opposed themselves
to Paul and blasphemed when he testified that Jesus was the
Christ, then Paul ceased to preach the gospel in the Jewish
synagogue as he had formerly done, and "he departed thence,
and went into the house of a certain man named Titus Justus,
one that worshipped God, whose house joined hard to the
synagogue" (Acts 18:7).
"Titius Justus was evidently a Roman or a Latin, one of the
coloni of the colony Corinth. Like the centurion Cornelius,
he had been attracted to the synagogue. His citizenship
would afford Paul an opening to the more educated class of
the Corinthian population" (Ramsay, Paul the Traveler and
the Rom Citizen, 256).
Paul's residence in Corinth continued for a year and a half,
followed without a break by another period indicated in the
words, he "tarried after this yet many days" (Acts
18:11,18), and during the whole of this time he evidently
used the house of Titius Justus, for the purposes both of
preaching the gospel and of gathering the church together
for Christian worship and instruction, "teaching the word of
God among them" (Acts 18:11).
Titius Justus, therefore, must have been a wealthy man,
since he possessed a house in which there was an apartment
sufficiently large to be used for both of these purposes;
and he himself must have been a most enthusiastic member of
the church, when in a period of protracted difficulty and
persecution, he welcomed Paul to his house, that he might
use it as the meeting-place of the church in Corinth.
Link: https://bible-history.com/isbe/T/TITUS,+EPISTLE+TO/