Paul recalls that his visit was not in vain. Though they had been mistreated and insulted in Philippi, they had courage in God to declare the gospel in Thessalonica amid much opposition. Their appeal did not spring from error or impurity or trickery: they speak as men God approved to be entrusted with the gospel, and they seek to please God, who tests hearts, not people. They never used words of flattery or a pretext for greed, nor sought glory from people, though as apostles of Christ they could have asked for respect.
They were gentle among them like a nursing mother with her own children. They loved them so much that they shared with them not only the gospel but their own selves. Paul reminds them of their labor and toil: night and day they worked so as not to burden anyone while they preached. As witnesses, both they and God know that their conduct was holy, righteous and blameless. And like a father with his children, they exhorted, comforted and charged each one to walk in a manner worthy of God, who calls them into his kingdom and glory.
Paul gives thanks that when they heard the word they received it not as the word of men but as what it really is, the word of God, which is at work in believers. They became imitators of the churches of God in Judea, since they suffered from their own countrymen the same things those churches suffered from certain Jews who killed the Lord Jesus and the prophets, drove the missionaries out, and hinder them from speaking to the Gentiles so that they might be saved. Paul concludes that, separated from them for a short time, he wanted to return several times, but Satan hindered him. For they are his hope, joy and crown of boasting before the Lord Jesus at his coming.