“For you yourselves know, brethren, that our coming to you was not in vain. But even after we had suffered before and were spitefully treated at Philippi, as you know, we were bold in our God to speak to you the gospel of God in much conflict. For our exhortation did not come from deceit or uncleanness, nor was it in guile. But as we have been approved by God to be entrusted with the gospel, even so we speak, not as pleasing men, but God who tests our hearts.” 1 Thessalonians 2:1-4.
“For I want you to know what a great conflict I have for you and those in Laodicea, and for as many as have not seen my face in the flesh, that their hearts may be encouraged, being knit together in love, and attaining to all riches of the full assurance of understanding, to the knowledge of the mystery of God, both of the Father and of Christ, in whom are hidden all the treasures of wisdom and knowledge.” Colossians 2:1-3.
“Paul, an apostle of Jesus Christ by the will of God, and Timothy our brother, to the saints [holy ones] and faithful brethren in Christ who are in Colosse: Grace to you and peace from God our Father and the Lord Jesus Christ.” Colossians 1:1-2.