Treasury of Scripture Knowledge
Paul went into the Jewish synagogue and spoke boldly for three months, discussing and convincing people about matters regarding the kingdom of God.
And when they arrived [in Antioch of Syria], they gathered the church together and reported everything that God had done through them and how He had opened a door [of opportunity] for the [unconverted] Gentiles to [enter] the faith.
2 Corinthians 2:12
Now when I came to Troas [See Acts 16:8], in order to preach the good news about Christ, and when a door [of opportunity] was opened to me in [the service of] the Lord [there],
At the same time, pray for us also, that God will open up a door [of opportunity] for [proclaiming] the message, so we can tell about the [previously] hidden secret of Christ, for which I have also been imprisoned.
"And write [this] to the angel of the church at Philadelphia: These are the words of Him who is holy and true, [and] who possesses the key [i.e., the power and authority] of King David, [and] who opens [a door] which no one will close, and who closes one that no one will open:
1 Corinthians 15:32
What benefit was it to me, from a human standpoint, if I fought wild animals in Ephesus, and [yet] the dead are not raised? [Note: This probably refers to Paul facing ferocious opposition from people there in Ephesus]. We should [just] eat and drink, for tomorrow we [may] die.
But some became stubborn and refused to obey [the message], saying false things about "the Way" [Note: This was a term used to designate the early church] in front of the large crowds. So, Paul left [the synagogue] and took the disciples and began holding discussions every day at Tyrannus' school [house].
2 Corinthians 1:8
For we want you to know, brothers, about the trouble that we experienced in Asia. [See I Cor. 16:19]. We were under a heavy burden [which was] more than we could stand, even to the point of despairing of life.
For I have often told you before, and am telling you again with tears in my eyes, that many people are living as the enemies of the cross of Christ [i.e., their lives oppose the purpose of Christ's death].